organic compounds
Racemic N-methyl-4-[2-(methylsulfanyl)pyrimidin-4-yl]-1-(tetrahydrofuran-3-yl)-1H-pyrazol-5-amine
aPfizer Global Research and Development, La Jolla Laboratories, 10770 Science Center Drive, San Diego, CA 92121, USA, and bDepartment of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
*Correspondence e-mail: alex.yanovsky@pfizer.com
The title compound, C13H17N5OS, was obtained by cycloaddition of 2-[2-(methylsulfanyl)pyrimidin-4-yl]-3-oxopropanenitrile with (tetrahydrofuran-3-yl)hydrazine dihydrochloride and subsequent N-methylation of 4-[2-(methylsulfanyl)pyrimidin-4-yl]-1-(tetrahydrofuran-2-yl)-1H-pyrazol-5-amine with methyl iodide. The two molecules in the have opposite absolute configurations and are related by a noncrystallographic inversion center. Both feature intramolecular N—H⋯N hydrogen bonds. The geometry of the molecules is similar to that observed in the structure of a single enantiomer of the title compound.
Related literature
For the structure of the R-enantiomer component of the racemic title compound, see: Liu et al. (2009a). For details of the synthesis of the title compound, see: Liu et al. (2009a,b).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1997); cell SAINT (Bruker, 1997); data reduction: SAINT; program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-32 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536809014317/dn2448sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809014317/dn2448Isup2.hkl
The detailed descriptions of the synthesis of the title compound are given in Liu et al. (2009a) and Liu et al. (2009b).
All H atoms bonded to C atoms were placed in geometrically calculated positions (C—H 0.95 Å, 0.98 Å, 0.99 Å, and 1.00 Å for aromatic, methyl, methylene and methyne H atoms respectively) and included in the
in riding motion approximation. The H3N and H8N atoms were located in the difference Fourier map and refined isotropically [N3—H3N 0.82 (2) Å; N8—H8N 0.83 (2) Å]. The Uiso(H) were set to 1.2Ueq of the carrying atom for non-methyl and amine, and 1.5Ueq for methyl H atoms.Data collection: SMART (Bruker, 1997); cell
SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-32 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).C13H17N5OS | F(000) = 1232 |
Mr = 291.38 | Dx = 1.386 Mg m−3 |
Monoclinic, P21/n | Cu Kα radiation, λ = 1.54178 Å |
Hall symbol: -P 2yn | Cell parameters from 1033 reflections |
a = 15.7404 (5) Å | θ = 4.9–54.9° |
b = 10.1515 (3) Å | µ = 2.10 mm−1 |
c = 18.9644 (6) Å | T = 100 K |
β = 112.829 (1)° | Block, colorless |
V = 2792.92 (15) Å3 | 0.30 × 0.20 × 0.20 mm |
Z = 8 |
Bruker P4/APEX CCD diffractometer | 5007 independent reflections |
Radiation source: fine-focus sealed tube | 4521 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.030 |
ω scans | θmax = 68.6°, θmin = 3.1° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −18→18 |
Tmin = 0.572, Tmax = 0.679 | k = −11→12 |
18618 measured reflections | l = −22→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)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.119 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0596P)2 + 1.859P] where P = (Fo2 + 2Fc2)/3 |
5007 reflections | (Δ/σ)max = 0.001 |
371 parameters | Δρmax = 0.88 e Å−3 |
0 restraints | Δρmin = −0.32 e Å−3 |
C13H17N5OS | V = 2792.92 (15) Å3 |
Mr = 291.38 | Z = 8 |
Monoclinic, P21/n | Cu Kα radiation |
a = 15.7404 (5) Å | µ = 2.10 mm−1 |
b = 10.1515 (3) Å | T = 100 K |
c = 18.9644 (6) Å | 0.30 × 0.20 × 0.20 mm |
β = 112.829 (1)° |
Bruker P4/APEX CCD diffractometer | 5007 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 4521 reflections with I > 2σ(I) |
Tmin = 0.572, Tmax = 0.679 | Rint = 0.030 |
18618 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 0 restraints |
wR(F2) = 0.119 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.88 e Å−3 |
5007 reflections | Δρmin = −0.32 e Å−3 |
371 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 | ||
C1 | 0.22461 (16) | −0.1765 (2) | 0.31756 (13) | 0.0393 (5) | |
H1A | 0.1969 | −0.2521 | 0.2834 | 0.047* | |
H1B | 0.2861 | −0.1583 | 0.3170 | 0.047* | |
C2 | 0.16265 (14) | −0.0551 (2) | 0.29178 (11) | 0.0310 (4) | |
H2A | 0.0969 | −0.0805 | 0.2670 | 0.037* | |
H2B | 0.1794 | −0.0008 | 0.2558 | 0.037* | |
C3 | 0.18197 (12) | 0.01907 (18) | 0.36747 (10) | 0.0213 (4) | |
H3 | 0.2191 | 0.0998 | 0.3691 | 0.026* | |
C4 | 0.24143 (13) | −0.07910 (18) | 0.42835 (11) | 0.0249 (4) | |
H4A | 0.3068 | −0.0511 | 0.4489 | 0.030* | |
H4B | 0.2204 | −0.0836 | 0.4712 | 0.030* | |
C5 | −0.01506 (12) | 0.02935 (18) | 0.41206 (10) | 0.0208 (4) | |
H5 | −0.0595 | −0.0101 | 0.4279 | 0.025* | |
C6 | −0.01006 (12) | 0.16645 (17) | 0.40075 (10) | 0.0199 (4) | |
C7 | 0.06411 (12) | 0.17913 (17) | 0.37729 (10) | 0.0196 (4) | |
C8 | 0.11656 (13) | 0.29925 (19) | 0.28860 (11) | 0.0263 (4) | |
H8A | 0.1802 | 0.2726 | 0.2992 | 0.039* | |
H8B | 0.1069 | 0.3899 | 0.2693 | 0.039* | |
H8C | 0.0740 | 0.2402 | 0.2501 | 0.039* | |
C9 | −0.06565 (12) | 0.27261 (18) | 0.41090 (10) | 0.0203 (4) | |
C10 | −0.13890 (13) | 0.25167 (19) | 0.43403 (11) | 0.0256 (4) | |
H10 | −0.1566 | 0.1654 | 0.4423 | 0.031* | |
C11 | −0.18401 (13) | 0.3611 (2) | 0.44425 (11) | 0.0289 (4) | |
H11 | −0.2330 | 0.3485 | 0.4611 | 0.035* | |
C12 | −0.09392 (12) | 0.49396 (18) | 0.40780 (10) | 0.0231 (4) | |
C13 | 0.02328 (15) | 0.6340 (2) | 0.35791 (13) | 0.0331 (5) | |
H13A | 0.0731 | 0.5852 | 0.3971 | 0.050* | |
H13B | 0.0462 | 0.7201 | 0.3499 | 0.050* | |
H13C | 0.0015 | 0.5842 | 0.3099 | 0.050* | |
C14 | −0.23088 (16) | 0.4429 (2) | 0.17690 (13) | 0.0387 (5) | |
H14A | −0.2920 | 0.4220 | 0.1775 | 0.046* | |
H14B | −0.2054 | 0.5207 | 0.2098 | 0.046* | |
C15 | −0.16593 (14) | 0.3254 (2) | 0.20499 (11) | 0.0324 (5) | |
H15A | −0.1816 | 0.2714 | 0.2417 | 0.039* | |
H15B | −0.1009 | 0.3544 | 0.2295 | 0.039* | |
C16 | −0.18296 (12) | 0.24857 (18) | 0.13061 (10) | 0.0220 (4) | |
H16 | −0.2189 | 0.1669 | 0.1297 | 0.026* | |
C17 | −0.24264 (13) | 0.34274 (19) | 0.06774 (11) | 0.0271 (4) | |
H17A | −0.2190 | 0.3484 | 0.0265 | 0.033* | |
H17B | −0.3071 | 0.3110 | 0.0454 | 0.033* | |
C18 | 0.01589 (12) | 0.24134 (17) | 0.08857 (10) | 0.0204 (4) | |
H18 | 0.0601 | 0.2813 | 0.0726 | 0.025* | |
C19 | 0.01176 (12) | 0.10435 (17) | 0.10037 (10) | 0.0191 (4) | |
C20 | −0.06290 (12) | 0.09089 (17) | 0.12278 (9) | 0.0188 (3) | |
C21 | −0.11957 (13) | −0.03136 (19) | 0.20869 (11) | 0.0262 (4) | |
H21A | −0.0808 | 0.0312 | 0.2471 | 0.039* | |
H21B | −0.1069 | −0.1210 | 0.2293 | 0.039* | |
H21C | −0.1847 | −0.0103 | 0.1958 | 0.039* | |
C22 | 0.06828 (11) | −0.00076 (18) | 0.09110 (9) | 0.0193 (4) | |
C23 | 0.14461 (12) | 0.02003 (18) | 0.07200 (10) | 0.0224 (4) | |
H23 | 0.1631 | 0.1063 | 0.0646 | 0.027* | |
C24 | 0.19188 (12) | −0.08969 (19) | 0.06428 (11) | 0.0247 (4) | |
H24 | 0.2430 | −0.0772 | 0.0502 | 0.030* | |
C25 | 0.09580 (12) | −0.22284 (18) | 0.09390 (10) | 0.0216 (4) | |
C26 | −0.03578 (16) | −0.3636 (2) | 0.12571 (14) | 0.0366 (5) | |
H26A | −0.0215 | −0.3133 | 0.1730 | 0.055* | |
H26B | −0.0608 | −0.4498 | 0.1308 | 0.055* | |
H26C | −0.0814 | −0.3155 | 0.0829 | 0.055* | |
N1 | 0.09784 (10) | 0.05689 (15) | 0.37756 (8) | 0.0199 (3) | |
N2 | 0.04867 (10) | −0.03777 (15) | 0.39826 (8) | 0.0217 (3) | |
N3 | 0.09942 (11) | 0.29183 (15) | 0.35925 (9) | 0.0220 (3) | |
N4 | −0.16316 (11) | 0.48479 (16) | 0.43195 (10) | 0.0283 (4) | |
N5 | −0.04410 (10) | 0.39615 (15) | 0.39708 (8) | 0.0212 (3) | |
N6 | −0.09717 (10) | 0.21269 (14) | 0.12244 (8) | 0.0197 (3) | |
N7 | −0.04837 (10) | 0.30785 (14) | 0.10218 (8) | 0.0215 (3) | |
N8 | −0.09920 (11) | −0.02230 (15) | 0.13985 (9) | 0.0215 (3) | |
N9 | 0.16958 (10) | −0.21327 (16) | 0.07561 (9) | 0.0249 (3) | |
N10 | 0.04399 (10) | −0.12520 (15) | 0.10180 (8) | 0.0200 (3) | |
O1 | 0.23183 (11) | −0.20351 (14) | 0.39248 (9) | 0.0365 (4) | |
O2 | −0.23835 (12) | 0.46761 (15) | 0.10208 (9) | 0.0398 (4) | |
S1 | −0.07026 (3) | 0.65654 (5) | 0.38885 (3) | 0.02884 (14) | |
S2 | 0.06756 (3) | −0.38593 (4) | 0.10801 (3) | 0.02817 (14) | |
H3N | 0.0715 (16) | 0.355 (2) | 0.3657 (13) | 0.034* | |
H8N | −0.0682 (16) | −0.085 (2) | 0.1349 (13) | 0.034* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0401 (12) | 0.0408 (13) | 0.0374 (12) | 0.0094 (10) | 0.0153 (9) | −0.0107 (10) |
C2 | 0.0277 (10) | 0.0418 (12) | 0.0246 (10) | 0.0030 (9) | 0.0113 (8) | −0.0049 (8) |
C3 | 0.0195 (8) | 0.0206 (9) | 0.0254 (9) | 0.0011 (7) | 0.0106 (7) | 0.0006 (7) |
C4 | 0.0231 (9) | 0.0236 (9) | 0.0296 (10) | 0.0047 (7) | 0.0120 (8) | 0.0033 (7) |
C5 | 0.0199 (8) | 0.0209 (9) | 0.0222 (9) | −0.0021 (7) | 0.0087 (7) | 0.0011 (7) |
C6 | 0.0193 (8) | 0.0195 (9) | 0.0207 (8) | −0.0008 (7) | 0.0075 (7) | 0.0006 (7) |
C7 | 0.0184 (8) | 0.0184 (8) | 0.0209 (8) | −0.0011 (7) | 0.0063 (7) | −0.0005 (7) |
C8 | 0.0240 (9) | 0.0270 (10) | 0.0272 (9) | 0.0014 (8) | 0.0091 (7) | 0.0066 (8) |
C9 | 0.0183 (8) | 0.0200 (9) | 0.0205 (8) | 0.0001 (7) | 0.0054 (7) | 0.0005 (7) |
C10 | 0.0228 (9) | 0.0240 (10) | 0.0313 (10) | −0.0004 (7) | 0.0120 (8) | 0.0028 (7) |
C11 | 0.0230 (9) | 0.0306 (10) | 0.0366 (11) | 0.0020 (8) | 0.0153 (8) | 0.0025 (8) |
C12 | 0.0199 (8) | 0.0225 (9) | 0.0239 (9) | 0.0006 (7) | 0.0051 (7) | −0.0018 (7) |
C13 | 0.0408 (11) | 0.0218 (10) | 0.0438 (12) | −0.0044 (8) | 0.0242 (10) | −0.0009 (8) |
C14 | 0.0423 (12) | 0.0363 (12) | 0.0386 (12) | 0.0071 (10) | 0.0168 (10) | −0.0073 (9) |
C15 | 0.0290 (10) | 0.0423 (12) | 0.0265 (10) | 0.0078 (9) | 0.0114 (8) | −0.0052 (9) |
C16 | 0.0209 (8) | 0.0214 (9) | 0.0257 (9) | 0.0022 (7) | 0.0113 (7) | 0.0010 (7) |
C17 | 0.0253 (9) | 0.0277 (10) | 0.0298 (10) | 0.0070 (8) | 0.0123 (8) | 0.0044 (8) |
C18 | 0.0207 (8) | 0.0178 (9) | 0.0235 (9) | −0.0015 (7) | 0.0092 (7) | −0.0009 (7) |
C19 | 0.0191 (8) | 0.0180 (9) | 0.0195 (8) | −0.0013 (7) | 0.0066 (7) | −0.0007 (6) |
C20 | 0.0195 (8) | 0.0166 (8) | 0.0188 (8) | −0.0008 (7) | 0.0057 (6) | −0.0006 (6) |
C21 | 0.0281 (9) | 0.0249 (10) | 0.0263 (9) | 0.0018 (8) | 0.0112 (8) | 0.0062 (7) |
C22 | 0.0177 (8) | 0.0204 (9) | 0.0172 (8) | −0.0002 (7) | 0.0040 (6) | −0.0005 (6) |
C23 | 0.0201 (8) | 0.0209 (9) | 0.0252 (9) | −0.0019 (7) | 0.0078 (7) | 0.0000 (7) |
C24 | 0.0174 (8) | 0.0267 (10) | 0.0295 (10) | 0.0019 (7) | 0.0084 (7) | −0.0005 (7) |
C25 | 0.0213 (8) | 0.0195 (9) | 0.0217 (9) | 0.0019 (7) | 0.0057 (7) | −0.0009 (7) |
C26 | 0.0449 (12) | 0.0194 (10) | 0.0575 (14) | −0.0029 (9) | 0.0329 (11) | 0.0000 (9) |
N1 | 0.0189 (7) | 0.0181 (7) | 0.0243 (7) | −0.0004 (6) | 0.0102 (6) | 0.0012 (6) |
N2 | 0.0231 (7) | 0.0177 (7) | 0.0251 (8) | −0.0026 (6) | 0.0101 (6) | 0.0021 (6) |
N3 | 0.0229 (8) | 0.0170 (7) | 0.0292 (8) | −0.0001 (6) | 0.0134 (6) | 0.0018 (6) |
N4 | 0.0225 (8) | 0.0264 (9) | 0.0378 (9) | 0.0030 (6) | 0.0136 (7) | −0.0009 (7) |
N5 | 0.0189 (7) | 0.0209 (8) | 0.0217 (7) | −0.0006 (6) | 0.0058 (6) | −0.0010 (6) |
N6 | 0.0205 (7) | 0.0166 (7) | 0.0235 (7) | 0.0006 (6) | 0.0101 (6) | 0.0010 (6) |
N7 | 0.0225 (7) | 0.0172 (7) | 0.0251 (8) | −0.0016 (6) | 0.0098 (6) | 0.0006 (6) |
N8 | 0.0235 (8) | 0.0160 (7) | 0.0282 (8) | 0.0016 (6) | 0.0136 (6) | 0.0020 (6) |
N9 | 0.0192 (7) | 0.0231 (8) | 0.0311 (8) | 0.0031 (6) | 0.0085 (6) | −0.0017 (6) |
N10 | 0.0201 (7) | 0.0180 (7) | 0.0204 (7) | −0.0002 (6) | 0.0063 (6) | −0.0011 (6) |
O1 | 0.0445 (9) | 0.0246 (7) | 0.0426 (8) | 0.0084 (6) | 0.0194 (7) | −0.0002 (6) |
O2 | 0.0538 (10) | 0.0272 (8) | 0.0448 (9) | 0.0133 (7) | 0.0260 (8) | 0.0044 (6) |
S1 | 0.0310 (3) | 0.0180 (2) | 0.0391 (3) | 0.00095 (18) | 0.0152 (2) | −0.00141 (18) |
S2 | 0.0329 (3) | 0.0160 (2) | 0.0385 (3) | 0.00297 (18) | 0.0170 (2) | 0.00048 (18) |
C1—O1 | 1.408 (3) | C14—H14A | 0.9900 |
C1—C2 | 1.529 (3) | C14—H14B | 0.9900 |
C1—H1A | 0.9900 | C15—C16 | 1.541 (3) |
C1—H1B | 0.9900 | C15—H15A | 0.9900 |
C2—C3 | 1.543 (2) | C15—H15B | 0.9900 |
C2—H2A | 0.9900 | C16—N6 | 1.464 (2) |
C2—H2B | 0.9900 | C16—C17 | 1.533 (2) |
C3—N1 | 1.461 (2) | C16—H16 | 1.0000 |
C3—C4 | 1.537 (2) | C17—O2 | 1.415 (2) |
C3—H3 | 1.0000 | C17—H17A | 0.9900 |
C4—O1 | 1.415 (2) | C17—H17B | 0.9900 |
C4—H4A | 0.9900 | C18—N7 | 1.322 (2) |
C4—H4B | 0.9900 | C18—C19 | 1.414 (2) |
C5—N2 | 1.320 (2) | C18—H18 | 0.9500 |
C5—C6 | 1.415 (2) | C19—C20 | 1.403 (2) |
C5—H5 | 0.9500 | C19—C22 | 1.443 (2) |
C6—C7 | 1.407 (2) | C20—N6 | 1.348 (2) |
C6—C9 | 1.447 (2) | C20—N8 | 1.377 (2) |
C7—N1 | 1.349 (2) | C21—N8 | 1.463 (2) |
C7—N3 | 1.372 (2) | C21—H21A | 0.9800 |
C8—N3 | 1.468 (2) | C21—H21B | 0.9800 |
C8—H8A | 0.9800 | C21—H21C | 0.9800 |
C8—H8B | 0.9800 | C22—N10 | 1.358 (2) |
C8—H8C | 0.9800 | C22—C23 | 1.399 (2) |
C9—N5 | 1.351 (2) | C23—C24 | 1.378 (3) |
C9—C10 | 1.400 (2) | C23—H23 | 0.9500 |
C10—C11 | 1.372 (3) | C24—N9 | 1.342 (2) |
C10—H10 | 0.9500 | C24—H24 | 0.9500 |
C11—N4 | 1.341 (3) | C25—N10 | 1.328 (2) |
C11—H11 | 0.9500 | C25—N9 | 1.338 (2) |
C12—N5 | 1.329 (2) | C25—S2 | 1.7614 (19) |
C12—N4 | 1.339 (2) | C26—S2 | 1.798 (2) |
C12—S1 | 1.7594 (19) | C26—H26A | 0.9800 |
C13—S1 | 1.799 (2) | C26—H26B | 0.9800 |
C13—H13A | 0.9800 | C26—H26C | 0.9800 |
C13—H13B | 0.9800 | N1—N2 | 1.383 (2) |
C13—H13C | 0.9800 | N3—H3N | 0.82 (2) |
C14—O2 | 1.400 (3) | N6—N7 | 1.378 (2) |
C14—C15 | 1.526 (3) | N8—H8N | 0.83 (2) |
O1—C1—C2 | 105.75 (16) | H15A—C15—H15B | 109.1 |
O1—C1—H1A | 110.6 | N6—C16—C17 | 112.64 (14) |
C2—C1—H1A | 110.6 | N6—C16—C15 | 112.50 (15) |
O1—C1—H1B | 110.6 | C17—C16—C15 | 103.46 (15) |
C2—C1—H1B | 110.6 | N6—C16—H16 | 109.4 |
H1A—C1—H1B | 108.7 | C17—C16—H16 | 109.4 |
C1—C2—C3 | 102.99 (15) | C15—C16—H16 | 109.4 |
C1—C2—H2A | 111.2 | O2—C17—C16 | 107.18 (15) |
C3—C2—H2A | 111.2 | O2—C17—H17A | 110.3 |
C1—C2—H2B | 111.2 | C16—C17—H17A | 110.3 |
C3—C2—H2B | 111.2 | O2—C17—H17B | 110.3 |
H2A—C2—H2B | 109.1 | C16—C17—H17B | 110.3 |
N1—C3—C4 | 112.99 (14) | H17A—C17—H17B | 108.5 |
N1—C3—C2 | 112.86 (14) | N7—C18—C19 | 112.69 (16) |
C4—C3—C2 | 103.01 (15) | N7—C18—H18 | 123.7 |
N1—C3—H3 | 109.3 | C19—C18—H18 | 123.7 |
C4—C3—H3 | 109.3 | C20—C19—C18 | 103.83 (15) |
C2—C3—H3 | 109.3 | C20—C19—C22 | 126.39 (16) |
O1—C4—C3 | 107.29 (15) | C18—C19—C22 | 129.77 (16) |
O1—C4—H4A | 110.3 | N6—C20—N8 | 124.39 (16) |
C3—C4—H4A | 110.3 | N6—C20—C19 | 106.85 (15) |
O1—C4—H4B | 110.3 | N8—C20—C19 | 128.72 (16) |
C3—C4—H4B | 110.3 | N8—C21—H21A | 109.5 |
H4A—C4—H4B | 108.5 | N8—C21—H21B | 109.5 |
N2—C5—C6 | 112.72 (15) | H21A—C21—H21B | 109.5 |
N2—C5—H5 | 123.6 | N8—C21—H21C | 109.5 |
C6—C5—H5 | 123.6 | H21A—C21—H21C | 109.5 |
C7—C6—C5 | 103.87 (15) | H21B—C21—H21C | 109.5 |
C7—C6—C9 | 126.33 (16) | N10—C22—C23 | 119.94 (16) |
C5—C6—C9 | 129.80 (16) | N10—C22—C19 | 116.56 (15) |
N1—C7—N3 | 124.83 (16) | C23—C22—C19 | 123.50 (16) |
N1—C7—C6 | 106.75 (15) | C24—C23—C22 | 117.31 (17) |
N3—C7—C6 | 128.40 (16) | C24—C23—H23 | 121.3 |
N3—C8—H8A | 109.5 | C22—C23—H23 | 121.3 |
N3—C8—H8B | 109.5 | N9—C24—C23 | 123.55 (17) |
H8A—C8—H8B | 109.5 | N9—C24—H24 | 118.2 |
N3—C8—H8C | 109.5 | C23—C24—H24 | 118.2 |
H8A—C8—H8C | 109.5 | N10—C25—N9 | 127.40 (17) |
H8B—C8—H8C | 109.5 | N10—C25—S2 | 118.83 (14) |
N5—C9—C10 | 120.07 (16) | N9—C25—S2 | 113.77 (13) |
N5—C9—C6 | 117.08 (15) | S2—C26—H26A | 109.5 |
C10—C9—C6 | 122.86 (16) | S2—C26—H26B | 109.5 |
C11—C10—C9 | 117.09 (17) | H26A—C26—H26B | 109.5 |
C11—C10—H10 | 121.5 | S2—C26—H26C | 109.5 |
C9—C10—H10 | 121.5 | H26A—C26—H26C | 109.5 |
N4—C11—C10 | 123.96 (17) | H26B—C26—H26C | 109.5 |
N4—C11—H11 | 118.0 | C7—N1—N2 | 112.18 (14) |
C10—C11—H11 | 118.0 | C7—N1—C3 | 128.07 (15) |
N5—C12—N4 | 127.39 (18) | N2—N1—C3 | 119.35 (14) |
N5—C12—S1 | 119.05 (14) | C5—N2—N1 | 104.46 (14) |
N4—C12—S1 | 113.57 (14) | C7—N3—C8 | 120.42 (15) |
S1—C13—H13A | 109.5 | C7—N3—H3N | 109.2 (17) |
S1—C13—H13B | 109.5 | C8—N3—H3N | 113.3 (17) |
H13A—C13—H13B | 109.5 | C12—N4—C11 | 114.28 (16) |
S1—C13—H13C | 109.5 | C12—N5—C9 | 117.16 (16) |
H13A—C13—H13C | 109.5 | C20—N6—N7 | 112.26 (14) |
H13B—C13—H13C | 109.5 | C20—N6—C16 | 127.71 (15) |
O2—C14—C15 | 105.96 (16) | N7—N6—C16 | 119.47 (14) |
O2—C14—H14A | 110.5 | C18—N7—N6 | 104.35 (14) |
C15—C14—H14A | 110.5 | C20—N8—C21 | 121.13 (15) |
O2—C14—H14B | 110.5 | C20—N8—H8N | 107.4 (17) |
C15—C14—H14B | 110.5 | C21—N8—H8N | 113.2 (16) |
H14A—C14—H14B | 108.7 | C25—N9—C24 | 114.62 (16) |
C14—C15—C16 | 102.77 (16) | C25—N10—C22 | 117.17 (15) |
C14—C15—H15A | 111.2 | C1—O1—C4 | 105.24 (15) |
C16—C15—H15A | 111.2 | C14—O2—C17 | 106.04 (16) |
C14—C15—H15B | 111.2 | C12—S1—C13 | 102.24 (9) |
C16—C15—H15B | 111.2 | C25—S2—C26 | 102.10 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3N···N5 | 0.82 (2) | 2.16 (2) | 2.828 (2) | 139 (2) |
N8—H8N···N10 | 0.83 (2) | 2.13 (2) | 2.820 (2) | 140 (2) |
Experimental details
Crystal data | |
Chemical formula | C13H17N5OS |
Mr | 291.38 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 100 |
a, b, c (Å) | 15.7404 (5), 10.1515 (3), 18.9644 (6) |
β (°) | 112.829 (1) |
V (Å3) | 2792.92 (15) |
Z | 8 |
Radiation type | Cu Kα |
µ (mm−1) | 2.10 |
Crystal size (mm) | 0.30 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Bruker P4/APEX CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.572, 0.679 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 18618, 5007, 4521 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.604 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.119, 1.05 |
No. of reflections | 5007 |
No. of parameters | 371 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.88, −0.32 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SIR97 (Altomare et al., 1999), SHELXL97 (Sheldrick, 2008), ORTEP-32 (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3N···N5 | 0.82 (2) | 2.16 (2) | 2.828 (2) | 139 (2) |
N8—H8N···N10 | 0.83 (2) | 2.13 (2) | 2.820 (2) | 140 (2) |
References
Altomare, A., Burla, M. C., Camalli, M., Cascarano, G. L., Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. & Spagna, R. (1999). J. Appl. Cryst. 32, 115–119. Web of Science CrossRef CAS IUCr Journals Google Scholar
Bruker (1997). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Bruker (2001). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Liu, Z., Liu, K. K.-C., Elleraas, J., Rheingold, A. L., DiPasquale, A. & Yanovsky, A. (2009a). Acta Cryst. E65, o616. Web of Science CSD CrossRef IUCr Journals Google Scholar
Liu, Z., Liu, K. K.-C., Elleraas, J., Rheingold, A. L., DiPasquale, A. & Yanovsky, A. (2009b). Acta Cryst. E65, o697. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals 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 title compound was obtained by cycloaddition of 2-(2-(methylsulfanyl)pyrimidin-4-yl)-3-oxopropanenitrile with (tetrahydrofuran-3-yl)hydrazine dihydrochloride and subsequent N-methylation of 4-(2-(methylsulfanyl)pyrimidin-4-yl) -1-(tetrahydrofuran-2-yl)-1H-pyrazol-5-amine with methyl iodide. As cycloaddition may potentially yield one of the two isomeric products differing in the position of the tetrahydrofuranyl substituent, present study was undertaken to establish which of the isomers is actually formed. The X-ray study showed that the product represents the title compound with amino and tetrahydrofuranyl substituents at the neighbouring atoms of the pyrazolyl ring.
There are two molecules in the asymmetric unit (Fig. 1). The molecules are chemically and conformationally identical, but have opposite absolute configurations; moreover, the structure provides an interesting case of almost precise, though non-crystallographic inversion symmetry. The local inversion center has approximate coordinates of -0.001, 0.134, 0.249. Such arrangement may be facilitated by the weak interactions between the H atoms of methyl groups C8 and C21 and the π-electron densities of pyrazolyl rings N6-N7-C18-C19-C20 and N1-N2-C5-C6-C7 respectively: the distances between the methyl C atoms and the centroids of the corresponding rings are 3.520 Å and 3.589 Å.
The geometry of the molecules is very similar to that observed in the structure of single enantiomer obtained by chiral separation of the title compound (Liu et al., 2009a). The methylsulfanylpyrimidine group and pyrazolyl ring lie approximately in one plane; maximum deviations of the C10 and C18 atoms in each of the two molecules are 0.033 (2) Å and 0.037 (2) Å respectively; displacements of methyl C8 and C21 atoms are 0.967 (2) Å and 1.020 (2) Å. Orientation of the tetrahydrofuran ring can be characterized by the dihedral angles 75.6 (1)° and 77.8 (1) formed by the pyrimidine-pyrazolyl planes with the C2-C3-C4 and C15-C16-C17 planes in each of the two molecules respectively.
The secondary amino groups in both molecules (N3 and N8) form intramolecular H-bonds with the N atoms of the pyrimidine rings (N5 and N10 respectively; Table 2).