organic compounds
c]pyrazole-5-carbonitrile dimethyl sulfoxide monosolvate
of 6-amino-4-(3-bromo-4-methoxyphenyl)-3-methyl-2,4-dihydropyrano[2,3-aH.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
*Correspondence e-mail: dr.sammer.yousuf@gmail.com
In the pyrazole molecule of the title solvate, C15H13BrN4O2·C2H6OS, the dihedral angle between the benzene ring and the mean plane of the dihydropyrano[2,3-c]pyrazole ring system [r.m.s deviation = 0.031 (2) Å] is 86.71 (14)°. In the crystal, the pyrazole molecules are linked by N—H⋯N hydrogen bonds, forming a layer parallel to (10-1). The pyrazole and dimethyl sulfoxide molecules are connected by an N—H⋯O hydrogen bond.
Keywords: crystal structure; pyrazole derivative; hydrogen bonding.
CCDC reference: 1404448
1. Related literature
For the applications and biological activities of pyrazole derivative, see: Balbia et al. (2011); Insuasty et al. (2010); Szabó et al. (2008); Perchellet et al. (2006); Tanitame et al. (2004, 2005); Abadi et al. (2003). For crystal structures of related compounds, see: Sharma et al. (2014).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 2009).
Supporting information
CCDC reference: 1404448
10.1107/S2056989015010543/is5403sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S2056989015010543/is5403Isup2.hkl
Supporting information file. DOI: 10.1107/S2056989015010543/is5403Isup3.cml
The title compound was synthesized as follows. Dichloromethane (10 ml), 1.0 equivalent (1 mmol) of triethylamine and pyrazolone were taken in a round bottom flask and allowed to stirred for 2 minutes at room temperature followed by the addition of 1.0 equivalent of corresponding pre-synthesized benzylidene from malononitrile and allowed to stir for additional 25–30 min. The progress of reaction was monitored by TLC. The desired product was appeared in the form of precipitates. The precipitates were washed with water to remove the unreacted pyrazolone to obtain pure products. Yeild 79%; m.p. 215 °C. The precipitates were redissolved in DMSO and allow to stand at room temperature for whole night followed by the removal of DMSO under freeze drying condition to obtain single crystals suitable for X-ray diffraction.
H atoms on methyl, phenyl and methine groups were positioned geometrically with C—H = 0.96, 0.93 and 0.98 Å, respectively, and constrained to ride on their parent atoms with Uiso(H) = 1.5Ueq(C) for the methyl H atoms or 1.2Ueq(C) for the other H atoms. H atoms on N were located in a difference Fourier map and refined freely [N—H = 0.81 (3)–0.86 (4) Å].
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008), PARST (Nardelli, 1995) and PLATON (Spek, 2009).Fig. 1. The molecular structure of the title compound with displacement ellipsoids drawn at 30% probability level. H atoms have been omitted. | |
Fig. 2. A crystal packing view of the title compound. Only H atoms involved in the hydrogen bonds (dashed lines) are shown. |
C15H13BrN4O2·C2H6OS | F(000) = 896 |
Mr = 439.33 | Dx = 1.492 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3172 reflections |
a = 13.4982 (6) Å | θ = 2.4–25.5° |
b = 8.3470 (4) Å | µ = 2.23 mm−1 |
c = 17.7173 (8) Å | T = 273 K |
β = 101.510 (1)° | BLOCK, colorless |
V = 1956.05 (16) Å3 | 0.54 × 0.51 × 0.33 mm |
Z = 4 |
Bruker SMART APEX CCD area-detector diffractometer | 3642 independent reflections |
Radiation source: fine-focus sealed tube | 2776 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.019 |
ω scan | θmax = 25.5°, θmin = 1.7° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −16→8 |
Tmin = 0.345, Tmax = 0.479 | k = −10→10 |
9464 measured reflections | l = −16→21 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.149 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0714P)2 + 2.3987P] where P = (Fo2 + 2Fc2)/3 |
3642 reflections | (Δ/σ)max < 0.001 |
247 parameters | Δρmax = 1.15 e Å−3 |
0 restraints | Δρmin = −0.59 e Å−3 |
C15H13BrN4O2·C2H6OS | V = 1956.05 (16) Å3 |
Mr = 439.33 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 13.4982 (6) Å | µ = 2.23 mm−1 |
b = 8.3470 (4) Å | T = 273 K |
c = 17.7173 (8) Å | 0.54 × 0.51 × 0.33 mm |
β = 101.510 (1)° |
Bruker SMART APEX CCD area-detector diffractometer | 3642 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 2776 reflections with I > 2σ(I) |
Tmin = 0.345, Tmax = 0.479 | Rint = 0.019 |
9464 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 0 restraints |
wR(F2) = 0.149 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 1.15 e Å−3 |
3642 reflections | Δρmin = −0.59 e Å−3 |
247 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
Br1 | 0.53684 (5) | 0.80041 (9) | 0.10616 (4) | 0.1100 (3) | |
S2 | 0.41262 (9) | 1.33033 (14) | 0.16737 (7) | 0.0725 (4) | |
O1 | 0.80217 (17) | 0.8729 (2) | −0.16690 (11) | 0.0408 (5) | |
C11 | 0.8828 (2) | 0.8290 (3) | −0.03464 (16) | 0.0318 (6) | |
C10 | 0.8569 (2) | 0.7805 (4) | −0.10982 (17) | 0.0347 (7) | |
C7 | 0.8596 (2) | 0.9926 (3) | −0.00378 (16) | 0.0328 (6) | |
H7A | 0.9235 | 1.0499 | 0.0131 | 0.039* | |
N1 | 0.7159 (2) | 1.1133 (3) | −0.19466 (15) | 0.0415 (6) | |
N3 | 0.8795 (3) | 0.6418 (4) | −0.13885 (18) | 0.0499 (8) | |
C12 | 0.9385 (2) | 0.7201 (4) | 0.01801 (17) | 0.0378 (7) | |
C8 | 0.7977 (2) | 1.0822 (3) | −0.07006 (16) | 0.0328 (6) | |
C6 | 0.8067 (2) | 0.9806 (4) | 0.06440 (16) | 0.0348 (7) | |
N2 | 0.7048 (2) | 1.2445 (3) | −0.15155 (16) | 0.0432 (7) | |
C9 | 0.7727 (2) | 1.0195 (3) | −0.14372 (16) | 0.0345 (7) | |
C2 | 0.6640 (3) | 0.9018 (5) | 0.1172 (2) | 0.0530 (9) | |
C13 | 0.7513 (3) | 1.2299 (4) | −0.07755 (18) | 0.0388 (7) | |
C4 | 0.7998 (3) | 1.0387 (5) | 0.19660 (19) | 0.0527 (9) | |
H4A | 0.8299 | 1.0837 | 0.2436 | 0.063* | |
N4 | 0.9847 (3) | 0.6326 (4) | 0.06142 (17) | 0.0545 (8) | |
C5 | 0.8497 (3) | 1.0446 (4) | 0.13548 (18) | 0.0458 (8) | |
H5A | 0.9131 | 1.0925 | 0.1423 | 0.055* | |
O2 | 0.6509 (2) | 0.9565 (4) | 0.24480 (16) | 0.0713 (8) | |
C1 | 0.7129 (3) | 0.9085 (4) | 0.05641 (18) | 0.0439 (8) | |
H1B | 0.6826 | 0.8641 | 0.0093 | 0.053* | |
C14 | 0.7477 (3) | 1.3584 (4) | −0.0197 (2) | 0.0588 (10) | |
H14A | 0.7084 | 1.4468 | −0.0441 | 0.088* | |
H14B | 0.8151 | 1.3940 | 0.0015 | 0.088* | |
H14C | 0.7171 | 1.3170 | 0.0208 | 0.088* | |
C15 | 0.6936 (4) | 1.0205 (7) | 0.3188 (2) | 0.0878 (16) | |
H15A | 0.6470 | 1.0061 | 0.3527 | 0.132* | |
H15B | 0.7068 | 1.1327 | 0.3140 | 0.132* | |
H15C | 0.7557 | 0.9659 | 0.3394 | 0.132* | |
C3 | 0.7068 (3) | 0.9673 (4) | 0.18880 (19) | 0.0499 (9) | |
O3 | 0.4267 (3) | 1.5021 (4) | 0.1919 (3) | 0.1011 (12) | |
C16 | 0.4432 (4) | 1.2187 (6) | 0.2534 (3) | 0.0736 (12) | |
H16A | 0.3899 | 1.2292 | 0.2817 | 0.110* | |
H16B | 0.5052 | 1.2583 | 0.2840 | 0.110* | |
H16C | 0.4511 | 1.1079 | 0.2413 | 0.110* | |
C17 | 0.5216 (5) | 1.2847 (8) | 0.1298 (4) | 0.106 (2) | |
H17A | 0.5175 | 1.3380 | 0.0812 | 0.159* | |
H17B | 0.5255 | 1.1711 | 0.1226 | 0.159* | |
H17C | 0.5808 | 1.3204 | 0.1652 | 0.159* | |
H3A | 0.913 (3) | 0.572 (5) | −0.110 (2) | 0.055 (11)* | |
H3B | 0.850 (3) | 0.620 (4) | −0.185 (2) | 0.041 (9)* | |
H2A | 0.670 (3) | 1.320 (4) | −0.1703 (19) | 0.034 (9)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0905 (4) | 0.1520 (6) | 0.1031 (5) | −0.0652 (4) | 0.0569 (4) | −0.0322 (4) |
S2 | 0.0579 (6) | 0.0701 (7) | 0.0833 (8) | 0.0025 (5) | −0.0009 (5) | 0.0238 (6) |
O1 | 0.0583 (14) | 0.0336 (11) | 0.0269 (10) | 0.0099 (10) | 0.0000 (9) | 0.0002 (9) |
C11 | 0.0335 (15) | 0.0346 (15) | 0.0262 (14) | 0.0017 (12) | 0.0030 (11) | 0.0019 (12) |
C10 | 0.0387 (16) | 0.0351 (16) | 0.0299 (15) | 0.0015 (13) | 0.0060 (12) | 0.0021 (12) |
C7 | 0.0349 (15) | 0.0341 (16) | 0.0285 (14) | −0.0028 (12) | 0.0042 (12) | −0.0005 (12) |
N1 | 0.0535 (16) | 0.0364 (14) | 0.0329 (13) | 0.0044 (12) | 0.0042 (12) | 0.0039 (11) |
N3 | 0.072 (2) | 0.0428 (17) | 0.0293 (15) | 0.0176 (16) | −0.0038 (14) | −0.0042 (13) |
C12 | 0.0441 (17) | 0.0405 (17) | 0.0288 (15) | 0.0015 (15) | 0.0075 (13) | −0.0036 (14) |
C8 | 0.0380 (16) | 0.0325 (15) | 0.0277 (14) | −0.0033 (12) | 0.0063 (12) | 0.0010 (12) |
C6 | 0.0414 (17) | 0.0341 (16) | 0.0286 (15) | 0.0038 (13) | 0.0064 (12) | 0.0007 (12) |
N2 | 0.0552 (18) | 0.0322 (15) | 0.0413 (16) | 0.0082 (13) | 0.0077 (13) | 0.0058 (12) |
C9 | 0.0425 (17) | 0.0305 (15) | 0.0302 (15) | −0.0014 (13) | 0.0065 (12) | 0.0025 (12) |
C2 | 0.056 (2) | 0.055 (2) | 0.053 (2) | −0.0082 (18) | 0.0221 (17) | −0.0011 (17) |
C13 | 0.0484 (18) | 0.0331 (16) | 0.0360 (16) | −0.0018 (14) | 0.0114 (14) | 0.0015 (13) |
C4 | 0.066 (2) | 0.062 (2) | 0.0303 (17) | 0.0052 (19) | 0.0112 (16) | −0.0061 (16) |
N4 | 0.069 (2) | 0.0520 (18) | 0.0379 (16) | 0.0160 (16) | 0.0002 (14) | 0.0015 (14) |
C5 | 0.0481 (19) | 0.055 (2) | 0.0331 (17) | −0.0028 (16) | 0.0045 (14) | −0.0050 (15) |
O2 | 0.089 (2) | 0.084 (2) | 0.0512 (16) | 0.0065 (17) | 0.0397 (15) | 0.0057 (14) |
C1 | 0.0467 (19) | 0.0522 (19) | 0.0343 (16) | −0.0085 (16) | 0.0115 (14) | −0.0051 (14) |
C14 | 0.087 (3) | 0.0398 (19) | 0.049 (2) | 0.0094 (19) | 0.014 (2) | −0.0070 (16) |
C15 | 0.105 (4) | 0.127 (4) | 0.040 (2) | 0.034 (3) | 0.034 (2) | 0.005 (2) |
C3 | 0.066 (2) | 0.051 (2) | 0.0377 (18) | 0.0106 (18) | 0.0239 (16) | 0.0077 (15) |
O3 | 0.104 (3) | 0.0544 (19) | 0.151 (4) | 0.0290 (18) | 0.041 (2) | 0.030 (2) |
C16 | 0.070 (3) | 0.065 (3) | 0.084 (3) | 0.003 (2) | 0.011 (2) | 0.020 (2) |
C17 | 0.119 (5) | 0.109 (5) | 0.101 (4) | 0.031 (4) | 0.047 (4) | 0.014 (4) |
Br1—C2 | 1.889 (4) | N2—H2A | 0.81 (3) |
S2—O3 | 1.499 (4) | C2—C1 | 1.371 (5) |
S2—C16 | 1.764 (5) | C2—C3 | 1.397 (5) |
S2—C17 | 1.773 (6) | C13—C14 | 1.492 (5) |
O1—C10 | 1.365 (4) | C4—C3 | 1.372 (5) |
O1—C9 | 1.374 (4) | C4—C5 | 1.385 (5) |
C11—C10 | 1.369 (4) | C4—H4A | 0.9300 |
C11—C12 | 1.408 (4) | C5—H5A | 0.9300 |
C11—C7 | 1.527 (4) | O2—C3 | 1.365 (4) |
C10—N3 | 1.327 (4) | O2—C15 | 1.426 (6) |
C7—C8 | 1.498 (4) | C1—H1B | 0.9300 |
C7—C6 | 1.524 (4) | C14—H14A | 0.9600 |
C7—H7A | 0.9800 | C14—H14B | 0.9600 |
N1—C9 | 1.319 (4) | C14—H14C | 0.9600 |
N1—N2 | 1.360 (4) | C15—H15A | 0.9600 |
N3—H3A | 0.84 (4) | C15—H15B | 0.9600 |
N3—H3B | 0.86 (4) | C15—H15C | 0.9600 |
C12—N4 | 1.150 (4) | C16—H16A | 0.9600 |
C8—C13 | 1.377 (4) | C16—H16B | 0.9600 |
C8—C9 | 1.384 (4) | C16—H16C | 0.9600 |
C6—C1 | 1.384 (4) | C17—H17A | 0.9600 |
C6—C5 | 1.385 (4) | C17—H17B | 0.9600 |
N2—C13 | 1.341 (4) | C17—H17C | 0.9600 |
O3—S2—C16 | 105.1 (2) | C8—C13—C14 | 130.9 (3) |
O3—S2—C17 | 104.3 (3) | C3—C4—C5 | 121.0 (3) |
C16—S2—C17 | 98.2 (3) | C3—C4—H4A | 119.5 |
C10—O1—C9 | 115.3 (2) | C5—C4—H4A | 119.5 |
C10—C11—C12 | 116.9 (3) | C6—C5—C4 | 121.1 (3) |
C10—C11—C7 | 125.6 (3) | C6—C5—H5A | 119.5 |
C12—C11—C7 | 117.4 (2) | C4—C5—H5A | 119.5 |
N3—C10—O1 | 109.7 (3) | C3—O2—C15 | 117.6 (4) |
N3—C10—C11 | 126.9 (3) | C2—C1—C6 | 120.7 (3) |
O1—C10—C11 | 123.3 (3) | C2—C1—H1B | 119.6 |
C8—C7—C6 | 112.2 (2) | C6—C1—H1B | 119.6 |
C8—C7—C11 | 106.7 (2) | C13—C14—H14A | 109.5 |
C6—C7—C11 | 112.7 (2) | C13—C14—H14B | 109.5 |
C8—C7—H7A | 108.3 | H14A—C14—H14B | 109.5 |
C6—C7—H7A | 108.3 | C13—C14—H14C | 109.5 |
C11—C7—H7A | 108.3 | H14A—C14—H14C | 109.5 |
C9—N1—N2 | 102.0 (2) | H14B—C14—H14C | 109.5 |
C10—N3—H3A | 120 (3) | O2—C15—H15A | 109.5 |
C10—N3—H3B | 117 (2) | O2—C15—H15B | 109.5 |
H3A—N3—H3B | 122 (4) | H15A—C15—H15B | 109.5 |
N4—C12—C11 | 179.2 (4) | O2—C15—H15C | 109.5 |
C13—C8—C9 | 103.1 (3) | H15A—C15—H15C | 109.5 |
C13—C8—C7 | 133.9 (3) | H15B—C15—H15C | 109.5 |
C9—C8—C7 | 122.9 (3) | O2—C3—C4 | 125.7 (3) |
C1—C6—C5 | 118.0 (3) | O2—C3—C2 | 116.5 (4) |
C1—C6—C7 | 120.8 (3) | C4—C3—C2 | 117.8 (3) |
C5—C6—C7 | 121.2 (3) | S2—C16—H16A | 109.5 |
C13—N2—N1 | 113.1 (3) | S2—C16—H16B | 109.5 |
C13—N2—H2A | 126 (2) | H16A—C16—H16B | 109.5 |
N1—N2—H2A | 121 (2) | S2—C16—H16C | 109.5 |
N1—C9—O1 | 119.2 (3) | H16A—C16—H16C | 109.5 |
N1—C9—C8 | 114.8 (3) | H16B—C16—H16C | 109.5 |
O1—C9—C8 | 126.0 (3) | S2—C17—H17A | 109.5 |
C1—C2—C3 | 121.4 (3) | S2—C17—H17B | 109.5 |
C1—C2—Br1 | 120.4 (3) | H17A—C17—H17B | 109.5 |
C3—C2—Br1 | 118.2 (3) | S2—C17—H17C | 109.5 |
N2—C13—C8 | 106.9 (3) | H17A—C17—H17C | 109.5 |
N2—C13—C14 | 122.2 (3) | H17B—C17—H17C | 109.5 |
C9—O1—C10—N3 | 179.1 (3) | C7—C8—C9—N1 | 178.5 (3) |
C9—O1—C10—C11 | −0.9 (4) | C13—C8—C9—O1 | 179.3 (3) |
C12—C11—C10—N3 | −0.7 (5) | C7—C8—C9—O1 | −1.9 (5) |
C7—C11—C10—N3 | 177.0 (3) | N1—N2—C13—C8 | 0.9 (4) |
C12—C11—C10—O1 | 179.4 (3) | N1—N2—C13—C14 | −179.0 (3) |
C7—C11—C10—O1 | −2.9 (5) | C9—C8—C13—N2 | −0.4 (3) |
C10—C11—C7—C8 | 4.0 (4) | C7—C8—C13—N2 | −179.0 (3) |
C12—C11—C7—C8 | −178.4 (3) | C9—C8—C13—C14 | 179.6 (4) |
C10—C11—C7—C6 | 127.6 (3) | C7—C8—C13—C14 | 0.9 (6) |
C12—C11—C7—C6 | −54.7 (4) | C1—C6—C5—C4 | −0.8 (5) |
C6—C7—C8—C13 | 52.8 (4) | C7—C6—C5—C4 | 177.6 (3) |
C11—C7—C8—C13 | 176.8 (3) | C3—C4—C5—C6 | 0.8 (6) |
C6—C7—C8—C9 | −125.6 (3) | C3—C2—C1—C6 | 0.1 (6) |
C11—C7—C8—C9 | −1.6 (4) | Br1—C2—C1—C6 | −179.1 (3) |
C8—C7—C6—C1 | 58.8 (4) | C5—C6—C1—C2 | 0.3 (5) |
C11—C7—C6—C1 | −61.8 (4) | C7—C6—C1—C2 | −178.1 (3) |
C8—C7—C6—C5 | −119.6 (3) | C15—O2—C3—C4 | −2.0 (6) |
C11—C7—C6—C5 | 119.8 (3) | C15—O2—C3—C2 | 179.1 (4) |
C9—N1—N2—C13 | −1.0 (4) | C5—C4—C3—O2 | −179.2 (3) |
N2—N1—C9—O1 | −178.8 (3) | C5—C4—C3—C2 | −0.4 (6) |
N2—N1—C9—C8 | 0.8 (4) | C1—C2—C3—O2 | 178.8 (3) |
C10—O1—C9—N1 | −177.1 (3) | Br1—C2—C3—O2 | −2.0 (5) |
C10—O1—C9—C8 | 3.4 (4) | C1—C2—C3—C4 | −0.1 (6) |
C13—C8—C9—N1 | −0.3 (4) | Br1—C2—C3—C4 | 179.1 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O3i | 0.82 (3) | 1.96 (4) | 2.762 (5) | 166 (4) |
N3—H3A···N4ii | 0.84 (4) | 2.26 (4) | 3.080 (5) | 165 (3) |
N3—H3B···N1iii | 0.86 (3) | 2.14 (4) | 2.983 (4) | 169 (3) |
Symmetry codes: (i) −x+1, −y+3, −z; (ii) −x+2, −y+1, −z; (iii) −x+3/2, y−1/2, −z−1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O3i | 0.82 (3) | 1.96 (4) | 2.762 (5) | 166 (4) |
N3—H3A···N4ii | 0.84 (4) | 2.26 (4) | 3.080 (5) | 165 (3) |
N3—H3B···N1iii | 0.86 (3) | 2.14 (4) | 2.983 (4) | 169 (3) |
Symmetry codes: (i) −x+1, −y+3, −z; (ii) −x+2, −y+1, −z; (iii) −x+3/2, y−1/2, −z−1/2. |
Acknowledgements
The authors acknowledge the financial support of the Higher Education Commission of Pakistan (HEC) through research projects Nos. 20–1910 and 20–2216 under the National Research Program for Universities.
References
Abadi, A. H., Eissa, A. A. H. & Hassan, G. S. (2003). Chem. Pharm. Bull. 51, 838–844. CrossRef PubMed CAS Google Scholar
Balbi, A., Anzaldi, M., Macciò, C., Aiello, C., Mazzei, M., Gangemi, R., Castagnola, P., Miele, M., Rosano, C. & Viale, M. (2011). Eur. J. Med. Chem. 46, 5293–5309. Web of Science CrossRef CAS PubMed Google Scholar
Bruker (2000). SADABS, SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Insuasty, B., Tigreros, A., Orozco, F., Quiroga, J., Abonía, R., Nogueras, M., Sanchez, A. & Cobo, J. (2010). Bioorg. Med. Chem. 18, 4965–4974. Web of Science CrossRef CAS PubMed Google Scholar
Nardelli, M. (1995). J. Appl. Cryst. 28, 659. CrossRef IUCr Journals Google Scholar
Perchellet, E. M., Ward, M. M., Skaltsounis, A. L., Kostakis, I. K., Pouli, N., Marakos, P. & Perchellet, J. P. (2006). Anticancer Res. 26, 2791–2804. Web of Science PubMed CAS Google Scholar
Sharma, N., Brahmachari, G., Banerjee, B., Kant, R. & Gupta, V. K. (2014). Acta Cryst. E70, o875–o876. CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Szabó, G., Fischer, J., Kis-Varga, A. & Gyires, K. (2008). J. Med. Chem. 51, 142–147. Web of Science PubMed Google Scholar
Tanitame, A., Oyamada, Y., Ofuji, K., Fujimoto, M., Suzuki, K., Ueda, T., Terauchi, H., Kawasaki, M., Nagai, K., Wachi, M. & Yamagishi, J. (2004). Bioorg. Med. Chem. 12, 5515–5524. Web of Science CrossRef PubMed CAS Google Scholar
Tanitame, A., Oyamada, Y., Ofuji, K., Terauchi, H., Kawasaki, M., Wachi, M. & Yamagishi, J. (2005). Bioorg. Med. Chem. Lett. 15, 4299–4303. Web of Science CrossRef PubMed CAS Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The pyrazole moiety containing compounds represent an important group of pharmaceutically active molecules with a wide range of biological activities including antifungal (Tanitame et al., 2004), antibacterial (Tanitame et al., 2005), anti-diabetic, (Balbia et al., 2011), anti-inflammatory (Szabo et al., 2008) and antiangiogenesis (Abadi et al., 2003). The pyrazole derivatives are also known to have antiproliferative (Perchellet et al., 2006) and anti-tumor (Insuasty et al., 2010) activities. The title compound was synthesize as a part of our ongoing research to synthesize and evaluate the biological activities of structural analogues of dihydropyrano[2,3-c] pyrazole derivatives. In continuation of our efforts to purify enantiomerically pure compounds from racemic mixtures by using simple crystallization techniques the title compound was crystallize as dimethyl sulfoxide (DMSO) solvate from racemic mixture by dissolving in DMSO at room temperature.
The structure of title compound is similar to that of previously published 6-amino-3-methyl-4-(3,4,5-trimethoxy-phenyl)-2,4-dihydropyrano[2,3-c]- pyrazole-5-carbonitrile (Sharma et al., 2014) with the difference that trimethoxy sustituted phenyl ring is replaced by methoxy substituted bromo benzene ring (Fig. 1). The dihedral angles between the benzene (C1–C6) / pyran (O1/C7–C9/C10/C11) rings and the benzene (C1–C6) / pyrazole (N1/N2/C8/C9/C13) rings are 87.53 (15) and 86.04 (18)°, respectively. The bond lengths and angles are similar as in structurally related benzohydrazide derivatives (Sharma et al., 2014). The crystal structure stabilize by intermolecular N—H···O and N—H···N interactions to form a layer parallel to (101) (Table 2 and Fig. 2).