Home Physical Sciences Crystal structure of N-((3-cyano-1-(2,6-dichloro-4-(trifluoromethyl)phenyl)-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-5-yl)carbamoyl)-2,6-difluorobenzamide, C20H7Cl2F8N5O3S
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Crystal structure of N-((3-cyano-1-(2,6-dichloro-4-(trifluoromethyl)phenyl)-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-5-yl)carbamoyl)-2,6-difluorobenzamide, C20H7Cl2F8N5O3S

  • Yingchun Fang , Changlei Song ORCID logo EMAIL logo , Yu-e Duan , Xiaoxue Xie and Qingbo Du
Published/Copyright: February 24, 2025

Abstract

C20H7Cl2F8N5O3S, monoclinic, P21/n (no. 14), a = 7.78993(14) Å, b = 11.8299(2) Å, c = 25.8640(5) Å, β = 93.1491(17)°, V = 2379.87(7) Å3, Z = 4, Rgt(F) = 0.0540, wRref(F2) = 0.1306, T = 100 K.

CCDC no.: 2422832

The title crystal structure is shown in the figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal: Clear light colourless block
Size: 0.12 × 0.10 × 0.10 mm
Wavelength: Cu Kα radiation (1.54184 Å)
μ: 4.20 mm−1
Diffractometer, scan mode: Rigaku, Synergy, HyPix, φ and ω scans
θmax, completeness: 71.1°, 100 %
N(hkl)measured, N(hkl)unique, Rint: 11582, 4508, 0.030
Criterion for Iobs, N(hkl)gt: Iobs > 2 σ(Iobs), 4,223
N(param)refined: 390
Programs: Rigaku, 1 Olex2, 2 SHELX 3 , 4
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

x y z Uiso*/Ueq
Cl1 0.69034 (13) 0.63675 (8) 0.73260 (4) 0.0499 (3)
Cl2 0.24050 (11) 0.37725 (8) 0.62286 (3) 0.0443 (2)
S1 0.04661 (8) 0.64347 (5) 0.80877 (2) 0.02156 (17)
F4 0.3240 (3) 0.77674 (18) 0.82028 (9) 0.0490 (6)
F5 0.2931 (3) 0.66252 (19) 0.88237 (8) 0.0462 (5)
F6 0.1264 (3) 0.8039 (2) 0.87404 (12) 0.0710 (9)
F7 0.3911 (3) 1.04613 (16) 0.63247 (7) 0.0373 (4)
F8 0.1436 (3) 0.80823 (16) 0.50333 (8) 0.0482 (6)
O1 −0.0107 (3) 0.56185 (17) 0.84797 (8) 0.0297 (5)
O2 0.1018 (3) 0.81029 (19) 0.73317 (8) 0.0372 (6)
O3 0.3245 (3) 0.73556 (18) 0.59696 (8) 0.0351 (5)
N1 0.3704 (3) 0.50706 (19) 0.71503 (9) 0.0243 (5)
N2 0.3853 (3) 0.42874 (19) 0.75328 (9) 0.0268 (5)
N3 0.2520 (4) 0.3464 (2) 0.87025 (10) 0.0400 (7)
N4 0.2365 (3) 0.6745 (2) 0.68766 (9) 0.0279 (5)
H4 0.2681 (3) 0.6580 (2) 0.65640 (9) 0.0334 (7)*
N5 0.1874 (3) 0.8514 (2) 0.65244 (9) 0.0291 (6)
H5 0.1453 (3) 0.9200 (2) 0.65527 (9) 0.0349 (7)*
C2 0.6821 (4) 0.5164 (3) 0.58868 (13) 0.0355 (8)
C3 0.5320 (4) 0.4549 (3) 0.58467 (12) 0.0332 (7)
H3 0.4988 (4) 0.4163 (3) 0.55351 (12) 0.0399 (8)*
C4 0.4301 (4) 0.4503 (2) 0.62700 (11) 0.0260 (6)
C5 0.4800 (4) 0.5059 (2) 0.67268 (11) 0.0236 (6)
C6 0.6333 (4) 0.5660 (2) 0.67617 (12) 0.0303 (7)
C7 0.7354 (4) 0.5717 (3) 0.63410 (15) 0.0387 (8)
H7 0.8403 (4) 0.6128 (3) 0.63629 (15) 0.0464 (10)*
C8 0.2802 (4) 0.4667 (2) 0.78822 (11) 0.0248 (6)
C9 0.2632 (4) 0.4010 (2) 0.83436 (11) 0.0291 (7)
C10 0.2590 (4) 0.5924 (2) 0.72492 (11) 0.0247 (6)
C11 0.1975 (4) 0.5695 (2) 0.77282 (11) 0.0232 (6)
C12 0.2102 (4) 0.7278 (2) 0.84775 (13) 0.0295 (7)
C13 0.1693 (4) 0.7797 (2) 0.69484 (12) 0.0282 (6)
C14 0.2634 (4) 0.8275 (2) 0.60674 (11) 0.0274 (6)
C15 0.2676 (4) 0.9231 (2) 0.56947 (11) 0.0256 (6)
C16 0.2114 (5) 0.9091 (3) 0.51785 (12) 0.0317 (7)
C17 0.2169 (5) 0.9941 (3) 0.48153 (12) 0.0356 (8)
H17 0.1745 (5) 0.9823 (3) 0.44682 (12) 0.0427 (9)*
C18 0.2861 (5) 1.0974 (3) 0.49707 (12) 0.0359 (8)
H18 0.2937 (5) 1.1565 (3) 0.47242 (12) 0.0431 (9)*
C19 0.3441 (5) 1.1159 (3) 0.54774 (13) 0.0350 (7)
H19 0.3914 (5) 1.1869 (3) 0.55818 (13) 0.0420 (9)*
C20 0.3320 (4) 1.0292 (3) 0.58280 (11) 0.0283 (6)
F1 0.9688 (12) 0.5866 (11) 0.5652 (4) 0.060 (3)a
F2 0.8555 (18) 0.4413 (8) 0.5299 (5) 0.063 (3)a
F3 0.754 (4) 0.603 (2) 0.5115 (11) 0.045 (4)a
C1 0.820 (3) 0.5394 (17) 0.5507 (8) 0.047 (3)a
F1A 0.7452 (6) 0.4406 (3) 0.50546 (15) 0.0542 (13)
F2A 0.9496 (5) 0.5117 (6) 0.55385 (17) 0.0751 (17)
F3A 0.7586 (17) 0.6199 (8) 0.5166 (4) 0.0453 (18)
C1A 0.7835 (9) 0.5205 (6) 0.5401 (3) 0.0383 (14)
  1. aOccupancy: 0.289 (8).

1 Source of materials

2,6-Difluorobenzoyl isocyanate (0.1 mol, 18.3 g) was added to a three-neck flask and heated to 40 °C. Drop 5-amino-1-(2,6-dichloro-4-(trifluoromethyl)phenyl-4-((trifluoromethyl)sulfinyl)-1h–pyrazole-3-carbonitrile (0.1 mol, 43.7 g) of dichloroethane (100 g) solution with stirring at 40–45 °C. The suspension was stirred at 80 °C for 2 h and slowly cooled to 0 °C. Then the mixture was filtered and dried at 70–80 °C to get white powder. The white powder was dissolved in a mixed solution (ethyl acetate: n-heptane = 2:1, v/v) and then slowly volatilized at room temperature to obtain the single crystal.

2 Experimental details

Absorption corrections were used by using multi-scan program. 1 The structure was solved with SHELX. 3 , 4 Hydrogen atoms were placed in their geometrically idealized positions. Hydrogen atoms were constrained to ride on their parent atoms.

3 Comment

Urea-based organic compounds are pivotal in the realm of drug discovery and development, owing to their distinct chemical architectures and broad spectrum of biological activities. Recent studies have shown that the classic drug phenobarbital, which contains a urea structure, has great potential to replace conventional benzodiazepine in the treatment of alcohol withdrawal syndrome (AWS). 5 Glimepiride containing sulfonylurea structure is the third generation of long-acting anti-diabetic drugs, the main mechanism of its hypoglycemic effect is to stimulate the secretion of insulin by islet bet which is very important in the treatment of diabetes. 6 Levastinib, a versatile anticancer drug containing urea structure, is often used in clinical studies in combination with other medicines and has shown excellent results. 7 In this paper, a new compound was synthesized by referring to the phenylpyrazole structure of the analgesic celecoxib and the structure of the drug urea described above. 8

The title molecule in the crystal structure is a flexible molecule and each title molecule contains two phenyl rings, one pyrazole ring and one urea group. Intermolecular and intramolecular connectivity are achieved through hydrogen bonds. First hydrogen bond is N4–H4⃛O3, the distance of N4–H4 bond is 0.88 Å, the distance of H4⃛O3 bond is 1.86 Å, the angle of N4–H4⃛O3 is 138°, its an intramolecular hydrogen bond. 9 Second hydrogen bond is N5–H5⃛F7, the distance of N5–H5 bond is 0.88 Å, the distance of H5⃛F7 bond is 2.52 Å, the angle of N5–H5⃛F7 is 104°, its an intramolecular hydrogen bond. 10 Third hydrogen bond is N4–H5⃛O1, the distance of N4–H5 bond is 0.95 Å, the distance of H5⃛O1 bond is 1.98 Å, the angle of N4–H5⃛O1 is 168°.

In addition, there are two intermolecular C–F⋯π interactions and one intramolecular C–O⋯π interaction among the aromatic rings from neighboring molecules. The first C–F⋯π interaction is C12–F4⃛Cg i (C2–C7; symmetry code i: 1 − x, 1/2 + y, 3/2 − z), the shortest distance between F and center of Cg i is 3.118(3) Å. 11 The second C–F⋯π interaction is C12–F6⃛Cg i , the shortest distance between F and center of Cg i is 3.346(3) Å. The first C–O⋯π interaction is C14–O3⃛Cg ii (C2–C7; symmetry code i: x, y, z), the shortest distance between F and center of Cg ii is 3.414(3) Å. 12 All geometric parameters are in the expected ranges. 13


Corresponding author: Changlei Song, North Anhui Health Vocational College, Suzhou, 234000, Anhui, P.R. China, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2025-01-07
Accepted: 2025-02-11
Published Online: 2025-02-24
Published in Print: 2025-06-26

© 2025 the author(s), published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

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