

organic compounds
tert-Butyl [(4-fluoro-3-isopropoxyisoxazol-5-yl)methyl](phenylsulfonyl)carbamate
aFaculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia, and bEaStCHEM School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, United Kingdom
*Correspondence e-mail: abdfatah@uitm.edu.my
The title compound, C18H23FN2O6S, a new derivative of a fluoroisoxazole containing sulfonamide functionality has been structurally characterized. The C—S—N—Cipr and C—S—N—Ccarb (ipr = 3-isopropoxyisoxazole, carb = carbamate) torsion angles are 111.1 (3)° and −70.0 (4)°, respectively. The sulfonamide of this structure features S=O bond lengths of 1.403 (3) and 1.433 (3) Å, an S—N bond length of 1.672 (4) Å, and an S—C bond length of 1.753 (4) Å. The crystal packing features non-classical C—H⋯O hydrogen-bond interactions, with the carbonyl atom acting as a bifurcated acceptor, resulting in an R12(8) ring.
Keywords: crystal structure; isoxazole; fluorine; N-fluorobenzenesulfonimide; sulfonamide; bifurcated hydrogen bond.
CCDC reference: 2447656
![[Scheme 3D1]](vm4067scheme3D1.gif)
![[Scheme 1]](vm4067scheme1.gif)
Structure description
Isoxazoles carrying sulfonamide moieties are very important structural motifs and have gained interest from pharmaceutical industry and medicinal chemists owing to their various bioactivities; antibacterial (Esfahani et al., 2021; Martinez et al., 2025
), antifungal (Soliman et al., 2025
), anticancer (Kilbile et al., 2024
; Vaickelionienė et al., 2023
), anti-inflammatory, antidiabetic and antioxidant (Ahmad et al., 2023
; Dayma et al., 2020
). Pharmaceutically important examples of isoxazole-containing sulfonamide drugs include the antibacterial agents sulfisoxazole and sulfamethoxazole (Rusu et al., 2023
), and the antiobesity and anticonvulsant agent zonisamide (Gidal et al., 2024
). Despite the potential usage of fluorinated five-membered and their functionalization in the life science industries (Imberg et al., 2025
; Hawk et al., 2021
; Fuchibe et al., 2023
), studies pertaining to the synthesis of such structural units, particularly selective fluorination of five-membered isoxazole systems are rare and challenging. To address this limitation, we report herein the of the title compound 1, obtained by treatment of 2 with excess N-fluorobenzenesulfonimide.
The molecular structure of the title compound, 1, which consists of a 4-fluoroisoxazole derivative with a sulfonamide group is shown in Fig. 1. In the solid state, the isoxazole ring (O1/N2/C3–C5) forms a dihedral angle of 10.9 (3)° with the sulfonyl-bound phenyl ring (C19–C24). The torsion angles C19—S18—N11—C10 and C19—S18—N11—C12 are 111.2 (3)° and −70.0 (4)° respectively. The sulfonamide adopts a conformation in agreement with that seen in related structures (Khrustalev et al., 2022
; Madhan et al., 2024
; Moroni et al., 2024
). The nitrogen atom of the sulfonamide displays a sp2 character, with an S18—N11—C10 angle of 119.1 (3)°. The sulfonamide sulfur atom displays a distorted tetrahedral geometry, with the widening of the O18—S18—O19 angle of 119.2 (2)°, accompanied by simultaneous decrease in the N11—S18—C19 angle [106.0 (2)°], as typically found in RSO2NR′ sulfonamide systems (Hernández et al., 2017
; Moroni et al., 2024
). The C10—N11—C12—O12 fragment adopts a syn conformation with a torsion angle of 5.0 (6)°. The molecular packing features weak C—H⋯O hydrogen bonds (Table 1
). Atoms C10 and C24 act as donors to the double-acceptor O-atom, O19, enclosing R21(8) ring motifs, and resulting in the formation of C21(5) chains along [001] (Fig. 2
). Further chains are formed by other C—H⋯O hydrogen bonds; C15—H15B with O18 forming C(8) chains along [110], and C22—H22 with O12 forming C(9) chains along [1
0] (Fig. 3
). The combination of these bonds results in a weakly interacting three-dimensional network.
|
![]() | Figure 1 The molecular structure of the title compound, showing displacement ellipsoids drawn at the 50% probability level. |
![]() | Figure 2 View of the weakly hydrogen-bonded C21(5) chains. |
![]() | Figure 3 View of the weakly hydrogen-bonded C(8) (vertical) and C(9) (horizontal) chains. |
Synthesis and crystallization
The carbamate precursor 2, was prepared according to our previously established protocol (Abdul Manan et al., 2017). The title compound 1, was synthesized following a literature procedure with a minor modification (Abdul Manan et al., 2017
) (Fig. 4
). n-BuLi (1.7 ml, 2.5 M in hexane, 4.29 mmol, 2.2 eq) was added dropwise to a solution of 5-(tert-butyloxycarbonyl)aminomethyl-3-isopropoxyisoxazole, 2, (500 mg, 1.95 mmol, 1.0 eq) at 195 K. The mixture was stirred for 1.5 h at 195 K and a solution of N-fluorobenzenesulfonimide (NFSI) (1.23 g, 3.90 mmol, 2.0 eq) in THF (4 ml) was added. The mixture was stirred for 2 h at 195 K and the temperature was allowed to warm to room temperature over 12 h. The reaction mixture was quenched with aqueous NH4Cl (10 ml) and the organic phase was extracted into EtOAc (3 × 20 ml). The combined organic layers were dried over MgSO4, filtered and concentrated under reduced pressure. The resulting residue was purified by silica gel (petroleum ether/Et2O, 80:20) to yield the title compound (323 mg, 40%) as a colourless viscous oil that crystallized on standing.
![]() | Figure 4 A synthetic scheme for the preparation of the title compound. |
Refinement
Crystal data, data collection and structure .
|
Structural data
CCDC reference: 2447656
https://doi.org/10.1107/S2414314625003852/vm4067sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2414314625003852/vm4067Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2414314625003852/vm4067Isup3.cml
C18H23FN2O6S | F(000) = 872 |
Mr = 414.44 | Dx = 1.382 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
a = 13.271 (3) Å | Cell parameters from 2002 reflections |
b = 13.904 (3) Å | θ = 2.2–25.3° |
c = 11.206 (2) Å | µ = 0.21 mm−1 |
β = 105.547 (6)° | T = 173 K |
V = 1992.1 (7) Å3 | Chip, colorless |
Z = 4 | 0.11 × 0.04 × 0.02 mm |
Rigaku XtaLAB P200K diffractometer | 3548 independent reflections |
Radiation source: Rotating Anode, Rigaku FR-X | 2824 reflections with I > 2σ(I) |
Rigaku Osmic Confocal Optical System monochromator | Rint = 0.060 |
Detector resolution: 5.8140 pixels mm-1 | θmax = 25.4°, θmin = 2.2° |
shutterless scans | h = −16→15 |
Absorption correction: multi-scan (REQAB; Rigaku, 1998) | k = −16→16 |
Tmin = 0.828, Tmax = 0.996 | l = −13→13 |
11991 measured reflections |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.042 | w = 1/[σ2(Fo2) + (0.0422P)2 + 0.1932P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.090 | (Δ/σ)max < 0.001 |
S = 1.01 | Δρmax = 0.19 e Å−3 |
3548 reflections | Δρmin = −0.21 e Å−3 |
258 parameters | Absolute structure: Flack x determined using 1114 quotients [(I+)-(I-)]/[(I+)+(I-)] (Parsons et al., 2013) |
2 restraints | Absolute structure parameter: −0.08 (6) |
Primary atom site location: iterative |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
Refinement. The C-bound H atoms were located geometrically (phenyl C—H = 0.95 Å, methine C—H = 1.00 Å, methylene C—H = 0.99 Å, methyl C—H = 0.98 Å) and refined as riding atoms. The constraint Uiso(H) = 1.2Ueq(non-methyl C) or 1.5Ueq(methyl C) was applied in all cases. |
x | y | z | Uiso*/Ueq | ||
S18 | 0.20066 (8) | 0.53009 (8) | 0.67391 (9) | 0.0319 (3) | |
F4 | 0.3603 (2) | 0.36593 (18) | 0.5679 (3) | 0.0508 (8) | |
O1 | 0.3211 (2) | 0.2277 (2) | 0.8123 (3) | 0.0405 (8) | |
O6 | 0.3663 (3) | 0.1578 (2) | 0.5344 (3) | 0.0394 (8) | |
O12 | 0.4876 (3) | 0.5034 (2) | 0.8535 (4) | 0.0509 (9) | |
O13 | 0.3957 (2) | 0.6237 (2) | 0.7380 (3) | 0.0374 (8) | |
O18 | 0.1283 (2) | 0.4542 (2) | 0.6758 (3) | 0.0423 (8) | |
O19 | 0.2191 (2) | 0.5575 (2) | 0.5583 (3) | 0.0410 (8) | |
N2 | 0.3347 (3) | 0.1538 (3) | 0.7299 (4) | 0.0424 (10) | |
N11 | 0.3121 (3) | 0.4906 (2) | 0.7701 (3) | 0.0329 (9) | |
C3 | 0.3498 (3) | 0.1989 (3) | 0.6341 (5) | 0.0334 (11) | |
C4 | 0.3455 (4) | 0.3008 (3) | 0.6489 (4) | 0.0340 (11) | |
C5 | 0.3268 (3) | 0.3148 (3) | 0.7593 (4) | 0.0328 (10) | |
C7 | 0.3772 (4) | 0.0519 (3) | 0.5362 (5) | 0.0426 (12) | |
H7 | 0.424446 | 0.031201 | 0.617519 | 0.051* | |
C8 | 0.2719 (4) | 0.0050 (4) | 0.5175 (6) | 0.0623 (17) | |
H8A | 0.241505 | 0.024101 | 0.584538 | 0.094* | |
H8B | 0.280006 | −0.065051 | 0.517834 | 0.094* | |
H8C | 0.225618 | 0.025455 | 0.437850 | 0.094* | |
C9 | 0.4282 (4) | 0.0302 (4) | 0.4340 (5) | 0.0558 (15) | |
H9A | 0.381604 | 0.050097 | 0.354336 | 0.084* | |
H9B | 0.441762 | −0.038986 | 0.432310 | 0.084* | |
H9C | 0.494386 | 0.065447 | 0.449076 | 0.084* | |
C10 | 0.3119 (4) | 0.3991 (3) | 0.8359 (4) | 0.0374 (11) | |
H10A | 0.244691 | 0.392111 | 0.857520 | 0.045* | |
H10B | 0.368739 | 0.399875 | 0.913979 | 0.045* | |
C12 | 0.4078 (4) | 0.5381 (3) | 0.7916 (4) | 0.0356 (11) | |
C14 | 0.4874 (4) | 0.6868 (4) | 0.7417 (5) | 0.0398 (12) | |
C15 | 0.4359 (4) | 0.7729 (4) | 0.6674 (5) | 0.0501 (14) | |
H15A | 0.401071 | 0.752770 | 0.582521 | 0.075* | |
H15B | 0.489062 | 0.821429 | 0.665758 | 0.075* | |
H15C | 0.384091 | 0.800369 | 0.705706 | 0.075* | |
C16 | 0.5409 (4) | 0.7130 (4) | 0.8742 (5) | 0.0523 (14) | |
H16A | 0.488817 | 0.736331 | 0.914923 | 0.078* | |
H16B | 0.592661 | 0.763617 | 0.875697 | 0.078* | |
H16C | 0.576024 | 0.656181 | 0.918007 | 0.078* | |
C17 | 0.5602 (4) | 0.6343 (4) | 0.6781 (5) | 0.0547 (15) | |
H17A | 0.591901 | 0.579010 | 0.728503 | 0.082* | |
H17B | 0.615281 | 0.678349 | 0.668906 | 0.082* | |
H17C | 0.519972 | 0.612039 | 0.596216 | 0.082* | |
C19 | 0.1648 (3) | 0.6322 (3) | 0.7446 (4) | 0.0283 (10) | |
C20 | 0.1626 (4) | 0.7214 (3) | 0.6888 (4) | 0.0405 (12) | |
H20 | 0.183187 | 0.728238 | 0.614288 | 0.049* | |
C21 | 0.1299 (4) | 0.8004 (3) | 0.7437 (5) | 0.0497 (14) | |
H21 | 0.127115 | 0.861996 | 0.706421 | 0.060* | |
C22 | 0.1013 (4) | 0.7896 (4) | 0.8526 (5) | 0.0452 (13) | |
H22 | 0.079839 | 0.844194 | 0.890452 | 0.054* | |
C23 | 0.1037 (4) | 0.7005 (4) | 0.9071 (5) | 0.0439 (12) | |
H23 | 0.083502 | 0.693720 | 0.981837 | 0.053* | |
C24 | 0.1353 (4) | 0.6210 (3) | 0.8528 (4) | 0.0391 (12) | |
H24 | 0.136771 | 0.559284 | 0.889508 | 0.047* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S18 | 0.0352 (6) | 0.0284 (5) | 0.0340 (6) | −0.0033 (5) | 0.0127 (5) | −0.0042 (5) |
F4 | 0.083 (2) | 0.0287 (14) | 0.0528 (18) | 0.0026 (14) | 0.0383 (16) | 0.0038 (13) |
O1 | 0.054 (2) | 0.0259 (17) | 0.0449 (19) | 0.0021 (15) | 0.0193 (16) | 0.0043 (14) |
O6 | 0.049 (2) | 0.0253 (16) | 0.045 (2) | 0.0029 (14) | 0.0144 (17) | −0.0042 (14) |
O12 | 0.040 (2) | 0.0382 (19) | 0.071 (2) | 0.0057 (17) | 0.0076 (18) | 0.0059 (18) |
O13 | 0.0303 (17) | 0.0292 (17) | 0.054 (2) | −0.0019 (13) | 0.0133 (15) | 0.0036 (15) |
O18 | 0.042 (2) | 0.0334 (18) | 0.053 (2) | −0.0099 (15) | 0.0160 (16) | −0.0045 (16) |
O19 | 0.051 (2) | 0.0420 (18) | 0.0326 (18) | −0.0035 (15) | 0.0152 (15) | −0.0024 (14) |
N2 | 0.055 (3) | 0.025 (2) | 0.051 (3) | 0.0008 (18) | 0.020 (2) | −0.0018 (19) |
N11 | 0.037 (2) | 0.0223 (19) | 0.042 (2) | 0.0015 (16) | 0.0153 (18) | −0.0014 (16) |
C3 | 0.031 (2) | 0.025 (2) | 0.044 (3) | 0.0009 (19) | 0.009 (2) | −0.001 (2) |
C4 | 0.039 (3) | 0.023 (2) | 0.041 (3) | 0.001 (2) | 0.012 (2) | 0.006 (2) |
C5 | 0.033 (3) | 0.024 (2) | 0.042 (3) | −0.0009 (19) | 0.012 (2) | 0.002 (2) |
C7 | 0.044 (3) | 0.024 (2) | 0.056 (3) | 0.007 (2) | 0.006 (3) | −0.005 (2) |
C8 | 0.056 (3) | 0.033 (3) | 0.093 (5) | −0.001 (3) | 0.010 (3) | −0.009 (3) |
C9 | 0.067 (4) | 0.042 (3) | 0.059 (4) | 0.013 (3) | 0.019 (3) | −0.014 (3) |
C10 | 0.051 (3) | 0.029 (2) | 0.034 (3) | −0.002 (2) | 0.014 (2) | 0.002 (2) |
C12 | 0.036 (3) | 0.031 (3) | 0.040 (3) | 0.002 (2) | 0.011 (2) | −0.003 (2) |
C14 | 0.030 (2) | 0.042 (3) | 0.049 (3) | −0.011 (2) | 0.012 (2) | −0.005 (2) |
C15 | 0.054 (4) | 0.040 (3) | 0.057 (3) | −0.014 (2) | 0.018 (3) | 0.005 (2) |
C16 | 0.054 (3) | 0.051 (3) | 0.052 (3) | −0.016 (3) | 0.015 (3) | −0.009 (3) |
C17 | 0.039 (3) | 0.074 (4) | 0.058 (4) | −0.006 (3) | 0.025 (3) | −0.004 (3) |
C19 | 0.026 (2) | 0.026 (2) | 0.032 (2) | 0.0001 (19) | 0.0075 (19) | −0.0024 (19) |
C20 | 0.045 (3) | 0.039 (3) | 0.039 (3) | 0.001 (2) | 0.013 (2) | 0.006 (2) |
C21 | 0.057 (3) | 0.028 (3) | 0.066 (4) | 0.006 (2) | 0.019 (3) | 0.002 (2) |
C22 | 0.038 (3) | 0.043 (3) | 0.055 (3) | 0.004 (2) | 0.013 (3) | −0.014 (2) |
C23 | 0.047 (3) | 0.045 (3) | 0.044 (3) | 0.001 (2) | 0.020 (2) | −0.006 (2) |
C24 | 0.048 (3) | 0.028 (3) | 0.045 (3) | 0.000 (2) | 0.020 (2) | 0.001 (2) |
S18—O18 | 1.430 (3) | C9—H9C | 0.9800 |
S18—O19 | 1.433 (3) | C10—H10A | 0.9900 |
S18—N11 | 1.672 (4) | C10—H10B | 0.9900 |
S18—C19 | 1.753 (4) | C14—C15 | 1.513 (7) |
F4—C4 | 1.333 (5) | C14—C16 | 1.509 (7) |
O1—N2 | 1.425 (5) | C14—C17 | 1.530 (7) |
O1—C5 | 1.360 (5) | C15—H15A | 0.9800 |
O6—C3 | 1.325 (5) | C15—H15B | 0.9800 |
O6—C7 | 1.478 (5) | C15—H15C | 0.9800 |
O12—C12 | 1.201 (6) | C16—H16A | 0.9800 |
O13—C12 | 1.322 (5) | C16—H16B | 0.9800 |
O13—C14 | 1.492 (5) | C16—H16C | 0.9800 |
N2—C3 | 1.304 (6) | C17—H17A | 0.9800 |
N11—C10 | 1.471 (6) | C17—H17B | 0.9800 |
N11—C12 | 1.394 (6) | C17—H17C | 0.9800 |
C3—C4 | 1.429 (6) | C19—C20 | 1.386 (6) |
C4—C5 | 1.340 (6) | C19—C24 | 1.379 (6) |
C5—C10 | 1.497 (6) | C20—H20 | 0.9500 |
C7—H7 | 1.0000 | C20—C21 | 1.384 (7) |
C7—C8 | 1.505 (7) | C21—H21 | 0.9500 |
C7—C9 | 1.509 (7) | C21—C22 | 1.379 (7) |
C8—H8A | 0.9800 | C22—H22 | 0.9500 |
C8—H8B | 0.9800 | C22—C23 | 1.378 (7) |
C8—H8C | 0.9800 | C23—H23 | 0.9500 |
C9—H9A | 0.9800 | C23—C24 | 1.380 (7) |
C9—H9B | 0.9800 | C24—H24 | 0.9500 |
O18—S18—O19 | 119.20 (19) | O12—C12—O13 | 127.2 (4) |
O18—S18—N11 | 103.28 (19) | O12—C12—N11 | 122.1 (4) |
O18—S18—C19 | 109.01 (19) | O13—C12—N11 | 110.7 (4) |
O19—S18—N11 | 109.52 (19) | O13—C14—C15 | 101.9 (4) |
O19—S18—C19 | 109.01 (19) | O13—C14—C16 | 109.5 (4) |
N11—S18—C19 | 105.97 (19) | O13—C14—C17 | 108.6 (4) |
C5—O1—N2 | 109.1 (3) | C15—C14—C17 | 111.7 (4) |
C3—O6—C7 | 117.1 (3) | C16—C14—C15 | 112.0 (4) |
C12—O13—C14 | 121.1 (3) | C16—C14—C17 | 112.6 (4) |
C3—N2—O1 | 105.1 (3) | C14—C15—H15A | 109.5 |
C10—N11—S18 | 119.1 (3) | C14—C15—H15B | 109.5 |
C12—N11—S18 | 124.3 (3) | C14—C15—H15C | 109.5 |
C12—N11—C10 | 116.6 (4) | H15A—C15—H15B | 109.5 |
O6—C3—C4 | 123.1 (4) | H15A—C15—H15C | 109.5 |
N2—C3—O6 | 125.7 (4) | H15B—C15—H15C | 109.5 |
N2—C3—C4 | 111.2 (4) | C14—C16—H16A | 109.5 |
F4—C4—C3 | 125.3 (4) | C14—C16—H16B | 109.5 |
F4—C4—C5 | 128.8 (4) | C14—C16—H16C | 109.5 |
C5—C4—C3 | 105.9 (4) | H16A—C16—H16B | 109.5 |
O1—C5—C10 | 114.5 (4) | H16A—C16—H16C | 109.5 |
C4—C5—O1 | 108.6 (4) | H16B—C16—H16C | 109.5 |
C4—C5—C10 | 136.9 (4) | C14—C17—H17A | 109.5 |
O6—C7—H7 | 109.5 | C14—C17—H17B | 109.5 |
O6—C7—C8 | 110.2 (4) | C14—C17—H17C | 109.5 |
O6—C7—C9 | 104.5 (4) | H17A—C17—H17B | 109.5 |
C8—C7—H7 | 109.5 | H17A—C17—H17C | 109.5 |
C8—C7—C9 | 113.3 (5) | H17B—C17—H17C | 109.5 |
C9—C7—H7 | 109.5 | C20—C19—S18 | 119.8 (3) |
C7—C8—H8A | 109.5 | C24—C19—S18 | 118.8 (3) |
C7—C8—H8B | 109.5 | C24—C19—C20 | 121.4 (4) |
C7—C8—H8C | 109.5 | C19—C20—H20 | 120.7 |
H8A—C8—H8B | 109.5 | C21—C20—C19 | 118.7 (4) |
H8A—C8—H8C | 109.5 | C21—C20—H20 | 120.7 |
H8B—C8—H8C | 109.5 | C20—C21—H21 | 120.0 |
C7—C9—H9A | 109.5 | C22—C21—C20 | 120.1 (5) |
C7—C9—H9B | 109.5 | C22—C21—H21 | 120.0 |
C7—C9—H9C | 109.5 | C21—C22—H22 | 119.7 |
H9A—C9—H9B | 109.5 | C23—C22—C21 | 120.7 (5) |
H9A—C9—H9C | 109.5 | C23—C22—H22 | 119.7 |
H9B—C9—H9C | 109.5 | C22—C23—H23 | 120.1 |
N11—C10—C5 | 111.8 (4) | C22—C23—C24 | 119.9 (5) |
N11—C10—H10A | 109.3 | C24—C23—H23 | 120.1 |
N11—C10—H10B | 109.3 | C19—C24—C23 | 119.3 (4) |
C5—C10—H10A | 109.3 | C19—C24—H24 | 120.4 |
C5—C10—H10B | 109.3 | C23—C24—H24 | 120.4 |
H10A—C10—H10B | 107.9 | ||
S18—N11—C10—C5 | 85.5 (4) | N11—S18—C19—C24 | −67.2 (4) |
S18—N11—C12—O12 | −173.8 (4) | C3—O6—C7—C8 | 75.5 (5) |
S18—N11—C12—O13 | 7.9 (5) | C3—O6—C7—C9 | −162.4 (4) |
S18—C19—C20—C21 | 177.4 (4) | C3—C4—C5—O1 | 0.9 (5) |
S18—C19—C24—C23 | −177.9 (4) | C3—C4—C5—C10 | −179.7 (5) |
F4—C4—C5—O1 | −177.5 (4) | C4—C5—C10—N11 | 4.3 (8) |
F4—C4—C5—C10 | 1.9 (9) | C5—O1—N2—C3 | 1.3 (5) |
O1—N2—C3—O6 | 179.8 (4) | C7—O6—C3—N2 | −5.4 (6) |
O1—N2—C3—C4 | −0.7 (5) | C7—O6—C3—C4 | 175.2 (4) |
O1—C5—C10—N11 | −176.3 (4) | C10—N11—C12—O12 | 5.0 (6) |
O6—C3—C4—F4 | −2.1 (7) | C10—N11—C12—O13 | −173.3 (4) |
O6—C3—C4—C5 | 179.4 (4) | C12—O13—C14—C15 | 178.6 (4) |
O18—S18—N11—C10 | −3.4 (4) | C12—O13—C14—C16 | −62.7 (5) |
O18—S18—N11—C12 | 175.4 (3) | C12—O13—C14—C17 | 60.6 (5) |
O18—S18—C19—C20 | −134.2 (4) | C12—N11—C10—C5 | −93.4 (4) |
O18—S18—C19—C24 | 43.3 (4) | C14—O13—C12—O12 | 5.0 (7) |
O19—S18—N11—C10 | −131.4 (3) | C14—O13—C12—N11 | −176.7 (4) |
O19—S18—N11—C12 | 47.4 (4) | C19—S18—N11—C10 | 111.2 (3) |
O19—S18—C19—C20 | −2.6 (4) | C19—S18—N11—C12 | −70.0 (4) |
O19—S18—C19—C24 | 175.0 (4) | C19—C20—C21—C22 | 0.7 (7) |
N2—O1—C5—C4 | −1.4 (5) | C20—C19—C24—C23 | −0.4 (7) |
N2—O1—C5—C10 | 179.0 (4) | C20—C21—C22—C23 | −0.8 (8) |
N2—C3—C4—F4 | 178.4 (4) | C21—C22—C23—C24 | 0.3 (8) |
N2—C3—C4—C5 | −0.1 (5) | C22—C23—C24—C19 | 0.3 (7) |
N11—S18—C19—C20 | 115.2 (4) | C24—C19—C20—C21 | −0.1 (7) |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10A···O19i | 0.99 | 2.47 | 3.121 (6) | 123 |
C15—H15B···O18ii | 0.98 | 2.59 | 3.571 (6) | 176 |
C22—H22···O12iii | 0.95 | 2.51 | 3.335 (6) | 145 |
C24—H24···O19i | 0.95 | 2.51 | 3.366 (5) | 150 |
Symmetry codes: (i) x, −y+1, z+1/2; (ii) x+1/2, y+1/2, z; (iii) x−1/2, y+1/2, z. |
Acknowledgements
The authors acknowledge Universiti Teknologi MARA for financial support.
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