organic compounds
N-Benzyl-9-isopropyl-9H-purin-6-amine
aDepartment of Chemistry, Faculty of Technology, Tomas Bata University in Zlin, Nám. T. G. Masaryka 275, Zlín 762 72, Czech Republic, and bDepartment of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno-Bohunice 625 00, Czech Republic
*Correspondence e-mail: rvicha@ft.utb.cz
The 15H17N5, consists of two molecules in which the dihedral angles between the best planes of the purine ring system (r.m.s. deviations = 0.0060 and 0.0190 Å) and the benzene ring are 89.21 (3) and 82.14 (4)°. The molecules within the are linked into dimers by pairs of N—H⋯N hydrogen bonds. Weak C—H⋯π contacts and π–π interactions [centroid–centroid = 3.3071 (1) Å] further connect the molecules into a three-dimensional network.
of the title compound, CRelated literature
The title compound was prepared according to a modified procedure published by Fiorini & Abel (1998). For the biological activity of 6,9-disubstituted purines, see: Cappellacci et al. (2011); Jorda et al. (2011); Tunçbilek et al. (2009). For crystallographic data for related compounds, see: Novotná & Trávníček (2013); Rouchal et al. (2009a,b); Trávníček et al. (2010).
Experimental
Crystal data
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Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536813013500/pk2482sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813013500/pk2482Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813013500/pk2482Isup3.cml
The title compound was prepared according to a slightly modified literature procedure (Fiorini & Abel, 1998). 6-Chloro-9-isopropyl-9H-purine (100 mg, 0.51 mmol) and benzylamine (58 mg, 0.54 mmol) were dissolved in a mixture of DMSO (4 ml) and triethylamine (57 mg, 0.56 mmol). The resulting solution was stirred at 90 °C for 2 h. Subsequently, the mixture was diluted with water and extracted with diethyl ether (7 × 10 ml). The combined organic layers were washed twice with brine, dried over Na2SO4 and evaporated in vacuum. The desired product was obtained after the purification of crude material using
(silica gel; petroleum ether/ethyl acetate, 1/3, v/v) as a colourless crystalline powder (66 mg, 49%, mp 388–391 K). The crystals used for data collection were grown by spontaneous evaporation from deuterochloroform at room temperature.All carbon bound H atoms were placed at calculated positions and were refined as riding with their Uiso set to either 1.2Ueq or 1.5Ueq (methyl) of the respective carrier atoms; in addition, the methyl H atoms were allowed to rotate about the C—C bond. Nitrogen bound H atoms were located in a difference Fourier map and refined isotropically.
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell
CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. An ellipsoid plot of the asymmetric unit with atoms represented as 50% probability ellipsoids. H-atoms are showed as small spheres of arbitrary radii. H-bonds are denoted with dashed lines. | |
Fig. 2. A fragment of the molecular packing. H-atoms have been omitted for clarity with exception to those participating in weak interactions. The red dashed lines denote the H-bonds, the green dashed lines denote the π···π interactions and the black dotted lines denote the C—H···π contacts. Cg1, Cg2,Cg3 and Cg4 are respective centers of gravity of C10–C15; C30–C35; C1,N1,C2,N2,C3,C4 and C21,N21,C22,N22,C23,C24 rings. Symmetry codes: i) -x + 1, -y + 1, -z + 2; ii) x, y, z + 1; iii) -x + 2, -y + 1, -z + 2. |
C15H17N5 | F(000) = 1136 |
Mr = 267.34 | Dx = 1.258 Mg m−3 |
Monoclinic, P21/c | Melting point: 390 K |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 12.9926 (5) Å | Cell parameters from 6488 reflections |
b = 21.1673 (7) Å | θ = 2.9–27.3° |
c = 11.2622 (6) Å | µ = 0.08 mm−1 |
β = 114.274 (5)° | T = 120 K |
V = 2823.5 (2) Å3 | Pyramid, colourless |
Z = 8 | 0.50 × 0.38 × 0.20 mm |
Oxford Diffraction Xcalibur (Sapphire2) diffractometer | 4972 independent reflections |
Radiation source: Enhance (Mo) X-ray Source | 3280 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.035 |
Detector resolution: 8.4353 pixels mm-1 | θmax = 25.0°, θmin = 3.3° |
ω scan | h = −15→15 |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | k = −25→23 |
Tmin = 0.942, Tmax = 1.000 | l = −13→10 |
21460 measured reflections |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | H atoms treated by a mixture of independent and constrained refinement |
R[F2 > 2σ(F2)] = 0.029 | w = 1/[σ2(Fo2) + (0.0275P)2] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.058 | (Δ/σ)max = 0.001 |
S = 0.83 | Δρmax = 0.13 e Å−3 |
4972 reflections | Δρmin = −0.16 e Å−3 |
373 parameters |
C15H17N5 | V = 2823.5 (2) Å3 |
Mr = 267.34 | Z = 8 |
Monoclinic, P21/c | Mo Kα radiation |
a = 12.9926 (5) Å | µ = 0.08 mm−1 |
b = 21.1673 (7) Å | T = 120 K |
c = 11.2622 (6) Å | 0.50 × 0.38 × 0.20 mm |
β = 114.274 (5)° |
Oxford Diffraction Xcalibur (Sapphire2) diffractometer | 4972 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | 3280 reflections with I > 2σ(I) |
Tmin = 0.942, Tmax = 1.000 | Rint = 0.035 |
21460 measured reflections |
R[F2 > 2σ(F2)] = 0.029 | 0 restraints |
wR(F2) = 0.058 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.83 | Δρmax = 0.13 e Å−3 |
4972 reflections | Δρmin = −0.16 e Å−3 |
373 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 > 2σ(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 | ||
N1 | 0.48434 (8) | 0.47471 (5) | 0.65985 (10) | 0.0260 (3) | |
N2 | 0.35401 (8) | 0.55081 (5) | 0.51464 (10) | 0.0262 (3) | |
N3 | 0.61994 (8) | 0.62964 (5) | 0.66899 (10) | 0.0313 (3) | |
N4 | 0.44524 (8) | 0.65164 (5) | 0.51961 (10) | 0.0263 (3) | |
N5 | 0.67119 (9) | 0.49857 (5) | 0.79188 (10) | 0.0265 (3) | |
C1 | 0.57003 (10) | 0.51658 (6) | 0.70266 (12) | 0.0241 (3) | |
C2 | 0.38440 (10) | 0.49452 (6) | 0.57007 (12) | 0.0279 (3) | |
H2 | 0.3265 | 0.4634 | 0.5419 | 0.033* | |
C3 | 0.44264 (10) | 0.59076 (6) | 0.55935 (12) | 0.0235 (3) | |
C4 | 0.54997 (10) | 0.57782 (6) | 0.65076 (11) | 0.0235 (3) | |
C5 | 0.55292 (10) | 0.67225 (6) | 0.58899 (12) | 0.0324 (3) | |
H5 | 0.5775 | 0.7136 | 0.5804 | 0.039* | |
C6 | 0.34853 (10) | 0.68646 (6) | 0.42406 (12) | 0.0264 (3) | |
H6 | 0.2996 | 0.6553 | 0.3584 | 0.032* | |
C7 | 0.38698 (11) | 0.73471 (7) | 0.35260 (13) | 0.0440 (4) | |
H7A | 0.4339 | 0.7141 | 0.3146 | 0.066* | |
H7B | 0.4310 | 0.7676 | 0.4136 | 0.066* | |
H7C | 0.3210 | 0.7538 | 0.2831 | 0.066* | |
C8 | 0.27902 (11) | 0.71513 (6) | 0.48996 (13) | 0.0374 (4) | |
H8A | 0.2602 | 0.6824 | 0.5394 | 0.056* | |
H8B | 0.2093 | 0.7329 | 0.4239 | 0.056* | |
H8C | 0.3224 | 0.7487 | 0.5493 | 0.056* | |
C9 | 0.69743 (10) | 0.43519 (6) | 0.84296 (12) | 0.0275 (3) | |
H9A | 0.7664 | 0.4207 | 0.8340 | 0.033* | |
H9B | 0.6349 | 0.4068 | 0.7898 | 0.033* | |
C10 | 0.71588 (10) | 0.42924 (6) | 0.98378 (12) | 0.0226 (3) | |
C11 | 0.65661 (10) | 0.46597 (6) | 1.03600 (13) | 0.0289 (3) | |
H11 | 0.6031 | 0.4958 | 0.9824 | 0.035* | |
C12 | 0.67436 (11) | 0.45977 (7) | 1.16490 (13) | 0.0369 (4) | |
H12 | 0.6325 | 0.4850 | 1.1992 | 0.044* | |
C13 | 0.75233 (11) | 0.41715 (7) | 1.24409 (14) | 0.0381 (4) | |
H13 | 0.7646 | 0.4131 | 1.3329 | 0.046* | |
C14 | 0.81238 (11) | 0.38046 (6) | 1.19388 (14) | 0.0363 (4) | |
H14 | 0.8666 | 0.3511 | 1.2481 | 0.044* | |
C15 | 0.79357 (10) | 0.38652 (6) | 1.06441 (13) | 0.0289 (3) | |
H15 | 0.8349 | 0.3608 | 1.0302 | 0.035* | |
N21 | 1.00117 (8) | 0.72864 (5) | 0.95195 (10) | 0.0239 (3) | |
N22 | 1.08432 (8) | 0.68113 (5) | 1.16590 (9) | 0.0236 (3) | |
N23 | 0.87221 (8) | 0.57374 (5) | 0.96305 (10) | 0.0279 (3) | |
N24 | 0.99893 (8) | 0.57966 (5) | 1.17200 (10) | 0.0256 (3) | |
N25 | 0.85603 (9) | 0.68204 (5) | 0.77541 (10) | 0.0260 (3) | |
C21 | 0.92837 (9) | 0.68029 (6) | 0.90160 (12) | 0.0220 (3) | |
C22 | 1.07258 (10) | 0.72557 (6) | 1.07788 (12) | 0.0252 (3) | |
H22 | 1.1224 | 0.7605 | 1.1090 | 0.030* | |
C23 | 1.01033 (9) | 0.63394 (6) | 1.11174 (12) | 0.0214 (3) | |
C24 | 0.93237 (9) | 0.62980 (6) | 0.98385 (12) | 0.0215 (3) | |
C25 | 0.91468 (10) | 0.54632 (6) | 1.07785 (13) | 0.0310 (3) | |
H25 | 0.8889 | 0.5066 | 1.0940 | 0.037* | |
C26 | 1.05832 (10) | 0.56472 (6) | 1.31163 (12) | 0.0297 (3) | |
H26 | 1.1349 | 0.5846 | 1.3442 | 0.036* | |
C27 | 1.07405 (11) | 0.49430 (6) | 1.33211 (13) | 0.0417 (4) | |
H27A | 1.1117 | 0.4776 | 1.2791 | 0.063* | |
H27B | 1.0002 | 0.4740 | 1.3062 | 0.063* | |
H27C | 1.1204 | 0.4856 | 1.4243 | 0.063* | |
C28 | 0.99545 (12) | 0.59390 (7) | 1.38523 (14) | 0.0486 (4) | |
H28A | 0.9907 | 0.6397 | 1.3718 | 0.073* | |
H28B | 1.0358 | 0.5847 | 1.4783 | 0.073* | |
H28C | 0.9192 | 0.5761 | 1.3532 | 0.073* | |
C29 | 0.85268 (10) | 0.73381 (6) | 0.68906 (12) | 0.0278 (3) | |
H29A | 0.8387 | 0.7163 | 0.6023 | 0.033* | |
H29B | 0.9275 | 0.7546 | 0.7232 | 0.033* | |
C30 | 0.76355 (10) | 0.78312 (6) | 0.67322 (12) | 0.0246 (3) | |
C31 | 0.73658 (10) | 0.79940 (6) | 0.77588 (13) | 0.0307 (3) | |
H31 | 0.7761 | 0.7802 | 0.8586 | 0.037* | |
C32 | 0.65295 (11) | 0.84318 (6) | 0.75992 (14) | 0.0376 (4) | |
H32 | 0.6350 | 0.8537 | 0.8312 | 0.045* | |
C33 | 0.59581 (12) | 0.87150 (6) | 0.64080 (16) | 0.0429 (4) | |
H33 | 0.5379 | 0.9013 | 0.6295 | 0.051* | |
C34 | 0.62262 (11) | 0.85664 (6) | 0.53779 (15) | 0.0405 (4) | |
H34 | 0.5840 | 0.8766 | 0.4558 | 0.049* | |
C35 | 0.70600 (10) | 0.81253 (6) | 0.55402 (13) | 0.0321 (3) | |
H35 | 0.7240 | 0.8023 | 0.4827 | 0.038* | |
H5N | 0.7264 (11) | 0.5272 (6) | 0.8262 (12) | 0.037 (4)* | |
H25N | 0.7954 (10) | 0.6558 (6) | 0.7491 (12) | 0.037 (4)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0217 (6) | 0.0304 (6) | 0.0255 (6) | −0.0021 (5) | 0.0093 (5) | −0.0038 (5) |
N2 | 0.0209 (6) | 0.0308 (7) | 0.0259 (7) | −0.0027 (5) | 0.0087 (5) | −0.0041 (5) |
N3 | 0.0241 (6) | 0.0316 (7) | 0.0299 (7) | −0.0035 (5) | 0.0026 (5) | 0.0040 (6) |
N4 | 0.0201 (6) | 0.0298 (7) | 0.0243 (6) | 0.0000 (5) | 0.0043 (5) | 0.0002 (5) |
N5 | 0.0222 (6) | 0.0272 (7) | 0.0248 (7) | −0.0012 (5) | 0.0045 (5) | 0.0000 (5) |
C1 | 0.0220 (7) | 0.0327 (8) | 0.0194 (8) | −0.0008 (6) | 0.0103 (6) | −0.0048 (6) |
C2 | 0.0223 (7) | 0.0328 (8) | 0.0292 (8) | −0.0045 (6) | 0.0114 (6) | −0.0062 (7) |
C3 | 0.0206 (7) | 0.0300 (8) | 0.0204 (8) | −0.0003 (6) | 0.0090 (6) | −0.0034 (6) |
C4 | 0.0213 (7) | 0.0280 (8) | 0.0198 (8) | −0.0021 (6) | 0.0072 (6) | −0.0017 (6) |
C5 | 0.0236 (7) | 0.0333 (8) | 0.0328 (9) | −0.0048 (6) | 0.0042 (6) | 0.0021 (7) |
C6 | 0.0214 (7) | 0.0328 (8) | 0.0201 (8) | 0.0026 (6) | 0.0036 (6) | −0.0001 (6) |
C7 | 0.0321 (8) | 0.0602 (11) | 0.0350 (9) | 0.0074 (7) | 0.0092 (7) | 0.0188 (8) |
C8 | 0.0387 (8) | 0.0418 (9) | 0.0317 (9) | 0.0115 (7) | 0.0144 (7) | 0.0023 (7) |
C9 | 0.0248 (7) | 0.0263 (8) | 0.0299 (8) | 0.0037 (6) | 0.0097 (6) | −0.0034 (6) |
C10 | 0.0199 (7) | 0.0197 (7) | 0.0274 (8) | −0.0027 (6) | 0.0089 (6) | −0.0033 (6) |
C11 | 0.0247 (7) | 0.0306 (8) | 0.0298 (9) | 0.0048 (6) | 0.0097 (6) | 0.0000 (7) |
C12 | 0.0360 (8) | 0.0450 (10) | 0.0338 (9) | 0.0042 (7) | 0.0186 (7) | −0.0038 (7) |
C13 | 0.0426 (9) | 0.0442 (9) | 0.0302 (9) | −0.0042 (7) | 0.0176 (7) | 0.0040 (7) |
C14 | 0.0370 (8) | 0.0307 (9) | 0.0387 (10) | 0.0045 (7) | 0.0132 (7) | 0.0126 (7) |
C15 | 0.0289 (7) | 0.0216 (8) | 0.0379 (9) | 0.0034 (6) | 0.0154 (7) | 0.0014 (6) |
N21 | 0.0202 (6) | 0.0243 (6) | 0.0270 (7) | 0.0002 (5) | 0.0094 (5) | −0.0011 (5) |
N22 | 0.0202 (5) | 0.0251 (6) | 0.0251 (6) | −0.0022 (5) | 0.0090 (5) | −0.0015 (5) |
N23 | 0.0248 (6) | 0.0261 (6) | 0.0273 (7) | −0.0031 (5) | 0.0050 (5) | 0.0033 (5) |
N24 | 0.0201 (6) | 0.0278 (6) | 0.0231 (6) | −0.0041 (5) | 0.0029 (5) | 0.0037 (5) |
N25 | 0.0223 (6) | 0.0270 (7) | 0.0245 (7) | −0.0016 (5) | 0.0054 (5) | 0.0042 (5) |
C21 | 0.0164 (6) | 0.0249 (7) | 0.0256 (8) | 0.0030 (6) | 0.0097 (6) | −0.0019 (6) |
C22 | 0.0206 (7) | 0.0256 (8) | 0.0301 (8) | −0.0015 (6) | 0.0112 (6) | −0.0043 (7) |
C23 | 0.0168 (6) | 0.0228 (7) | 0.0246 (8) | 0.0011 (5) | 0.0086 (6) | 0.0005 (6) |
C24 | 0.0173 (6) | 0.0224 (7) | 0.0235 (8) | 0.0001 (5) | 0.0071 (6) | 0.0006 (6) |
C25 | 0.0251 (7) | 0.0281 (8) | 0.0323 (9) | −0.0071 (6) | 0.0043 (7) | 0.0045 (7) |
C26 | 0.0228 (7) | 0.0369 (9) | 0.0226 (8) | −0.0038 (6) | 0.0023 (6) | 0.0069 (6) |
C27 | 0.0379 (8) | 0.0416 (9) | 0.0370 (9) | 0.0032 (7) | 0.0065 (7) | 0.0145 (7) |
C28 | 0.0530 (10) | 0.0584 (11) | 0.0321 (9) | 0.0091 (8) | 0.0151 (8) | 0.0064 (8) |
C29 | 0.0286 (7) | 0.0310 (8) | 0.0243 (8) | 0.0016 (6) | 0.0114 (6) | 0.0043 (6) |
C30 | 0.0228 (7) | 0.0248 (8) | 0.0260 (8) | −0.0036 (6) | 0.0099 (6) | 0.0011 (6) |
C31 | 0.0299 (7) | 0.0313 (8) | 0.0298 (8) | −0.0023 (6) | 0.0111 (7) | 0.0000 (7) |
C32 | 0.0374 (8) | 0.0327 (9) | 0.0488 (10) | 0.0000 (7) | 0.0238 (8) | −0.0045 (8) |
C33 | 0.0343 (8) | 0.0288 (9) | 0.0654 (12) | 0.0067 (7) | 0.0203 (8) | 0.0028 (8) |
C34 | 0.0380 (9) | 0.0313 (9) | 0.0468 (10) | 0.0057 (7) | 0.0119 (8) | 0.0120 (8) |
C35 | 0.0325 (8) | 0.0315 (8) | 0.0324 (9) | −0.0007 (6) | 0.0136 (7) | 0.0053 (7) |
N1—C2 | 1.3434 (15) | N21—C22 | 1.3396 (14) |
N1—C1 | 1.3476 (15) | N21—C21 | 1.3500 (14) |
N2—C2 | 1.3276 (15) | N22—C22 | 1.3291 (14) |
N2—C3 | 1.3482 (14) | N22—C23 | 1.3460 (14) |
N3—C5 | 1.3185 (15) | N23—C25 | 1.3138 (14) |
N3—C4 | 1.3851 (14) | N23—C24 | 1.3869 (14) |
N4—C5 | 1.3635 (14) | N24—C25 | 1.3661 (14) |
N4—C3 | 1.3693 (15) | N24—C23 | 1.3730 (14) |
N4—C6 | 1.4725 (14) | N24—C26 | 1.4733 (14) |
N5—C1 | 1.3404 (15) | N25—C21 | 1.3440 (15) |
N5—C9 | 1.4441 (14) | N25—C29 | 1.4539 (15) |
N5—H5N | 0.897 (12) | N25—H25N | 0.908 (12) |
C1—C4 | 1.4017 (16) | C21—C24 | 1.4012 (16) |
C2—H2 | 0.9500 | C22—H22 | 0.9500 |
C3—C4 | 1.3781 (15) | C23—C24 | 1.3815 (15) |
C5—H5 | 0.9500 | C25—H25 | 0.9500 |
C6—C7 | 1.5069 (17) | C26—C27 | 1.5093 (17) |
C6—C8 | 1.5119 (16) | C26—C28 | 1.5141 (18) |
C6—H6 | 1.0000 | C26—H26 | 1.0000 |
C7—H7A | 0.9800 | C27—H27A | 0.9800 |
C7—H7B | 0.9800 | C27—H27B | 0.9800 |
C7—H7C | 0.9800 | C27—H27C | 0.9800 |
C8—H8A | 0.9800 | C28—H28A | 0.9800 |
C8—H8B | 0.9800 | C28—H28B | 0.9800 |
C8—H8C | 0.9800 | C28—H28C | 0.9800 |
C9—C10 | 1.5086 (16) | C29—C30 | 1.5141 (16) |
C9—H9A | 0.9900 | C29—H29A | 0.9900 |
C9—H9B | 0.9900 | C29—H29B | 0.9900 |
C10—C15 | 1.3811 (16) | C30—C31 | 1.3826 (17) |
C10—C11 | 1.3842 (16) | C30—C35 | 1.3869 (16) |
C11—C12 | 1.3794 (17) | C31—C32 | 1.3825 (17) |
C11—H11 | 0.9500 | C31—H31 | 0.9500 |
C12—C13 | 1.3757 (17) | C32—C33 | 1.3753 (18) |
C12—H12 | 0.9500 | C32—H32 | 0.9500 |
C13—C14 | 1.3764 (18) | C33—C34 | 1.3778 (19) |
C13—H13 | 0.9500 | C33—H33 | 0.9500 |
C14—C15 | 1.3818 (17) | C34—C35 | 1.3841 (17) |
C14—H14 | 0.9500 | C34—H34 | 0.9500 |
C15—H15 | 0.9500 | C35—H35 | 0.9500 |
C2—N1—C1 | 117.70 (11) | C22—N21—C21 | 117.94 (11) |
C2—N2—C3 | 110.12 (10) | C22—N22—C23 | 110.22 (10) |
C5—N3—C4 | 103.39 (10) | C25—N23—C24 | 103.43 (10) |
C5—N4—C3 | 105.74 (10) | C25—N24—C23 | 105.28 (10) |
C5—N4—C6 | 128.68 (11) | C25—N24—C26 | 128.21 (11) |
C3—N4—C6 | 125.56 (10) | C23—N24—C26 | 126.27 (10) |
C1—N5—C9 | 124.12 (11) | C21—N25—C29 | 122.94 (11) |
C1—N5—H5N | 119.7 (8) | C21—N25—H25N | 117.6 (8) |
C9—N5—H5N | 116.1 (8) | C29—N25—H25N | 117.3 (8) |
N5—C1—N1 | 119.51 (12) | N25—C21—N21 | 119.20 (12) |
N5—C1—C4 | 122.18 (11) | N25—C21—C24 | 122.67 (11) |
N1—C1—C4 | 118.31 (11) | N21—C21—C24 | 118.13 (11) |
N2—C2—N1 | 129.98 (12) | N22—C22—N21 | 129.88 (11) |
N2—C2—H2 | 115.0 | N22—C22—H22 | 115.1 |
N1—C2—H2 | 115.0 | N21—C22—H22 | 115.1 |
N2—C3—N4 | 126.89 (11) | N22—C23—N24 | 126.80 (11) |
N2—C3—C4 | 126.94 (12) | N22—C23—C24 | 126.90 (12) |
N4—C3—C4 | 106.13 (11) | N24—C23—C24 | 106.28 (10) |
C3—C4—N3 | 110.75 (11) | C23—C24—N23 | 110.56 (11) |
C3—C4—C1 | 116.93 (11) | C23—C24—C21 | 116.92 (11) |
N3—C4—C1 | 132.26 (11) | N23—C24—C21 | 132.52 (11) |
N3—C5—N4 | 113.99 (12) | N23—C25—N24 | 114.45 (11) |
N3—C5—H5 | 123.0 | N23—C25—H25 | 122.8 |
N4—C5—H5 | 123.0 | N24—C25—H25 | 122.8 |
N4—C6—C7 | 111.03 (10) | N24—C26—C27 | 110.72 (11) |
N4—C6—C8 | 110.17 (10) | N24—C26—C28 | 109.45 (11) |
C7—C6—C8 | 112.72 (11) | C27—C26—C28 | 112.88 (12) |
N4—C6—H6 | 107.6 | N24—C26—H26 | 107.9 |
C7—C6—H6 | 107.6 | C27—C26—H26 | 107.9 |
C8—C6—H6 | 107.6 | C28—C26—H26 | 107.9 |
C6—C7—H7A | 109.5 | C26—C27—H27A | 109.5 |
C6—C7—H7B | 109.5 | C26—C27—H27B | 109.5 |
H7A—C7—H7B | 109.5 | H27A—C27—H27B | 109.5 |
C6—C7—H7C | 109.5 | C26—C27—H27C | 109.5 |
H7A—C7—H7C | 109.5 | H27A—C27—H27C | 109.5 |
H7B—C7—H7C | 109.5 | H27B—C27—H27C | 109.5 |
C6—C8—H8A | 109.5 | C26—C28—H28A | 109.5 |
C6—C8—H8B | 109.5 | C26—C28—H28B | 109.5 |
H8A—C8—H8B | 109.5 | H28A—C28—H28B | 109.5 |
C6—C8—H8C | 109.5 | C26—C28—H28C | 109.5 |
H8A—C8—H8C | 109.5 | H28A—C28—H28C | 109.5 |
H8B—C8—H8C | 109.5 | H28B—C28—H28C | 109.5 |
N5—C9—C10 | 113.94 (10) | N25—C29—C30 | 114.18 (11) |
N5—C9—H9A | 108.8 | N25—C29—H29A | 108.7 |
C10—C9—H9A | 108.8 | C30—C29—H29A | 108.7 |
N5—C9—H9B | 108.8 | N25—C29—H29B | 108.7 |
C10—C9—H9B | 108.8 | C30—C29—H29B | 108.7 |
H9A—C9—H9B | 107.7 | H29A—C29—H29B | 107.6 |
C15—C10—C11 | 118.18 (12) | C31—C30—C35 | 118.45 (12) |
C15—C10—C9 | 120.21 (11) | C31—C30—C29 | 121.18 (11) |
C11—C10—C9 | 121.60 (11) | C35—C30—C29 | 120.36 (12) |
C12—C11—C10 | 120.81 (12) | C32—C31—C30 | 120.95 (13) |
C12—C11—H11 | 119.6 | C32—C31—H31 | 119.5 |
C10—C11—H11 | 119.6 | C30—C31—H31 | 119.5 |
C13—C12—C11 | 120.31 (13) | C33—C32—C31 | 119.95 (14) |
C13—C12—H12 | 119.8 | C33—C32—H32 | 120.0 |
C11—C12—H12 | 119.8 | C31—C32—H32 | 120.0 |
C12—C13—C14 | 119.63 (13) | C32—C33—C34 | 119.99 (13) |
C12—C13—H13 | 120.2 | C32—C33—H33 | 120.0 |
C14—C13—H13 | 120.2 | C34—C33—H33 | 120.0 |
C13—C14—C15 | 119.79 (13) | C33—C34—C35 | 119.86 (14) |
C13—C14—H14 | 120.1 | C33—C34—H34 | 120.1 |
C15—C14—H14 | 120.1 | C35—C34—H34 | 120.1 |
C10—C15—C14 | 121.27 (12) | C34—C35—C30 | 120.79 (13) |
C10—C15—H15 | 119.4 | C34—C35—H35 | 119.6 |
C14—C15—H15 | 119.4 | C30—C35—H35 | 119.6 |
Cg1, Cg2, Cg3 and Cg4 are centroids of the C10–C15, C30–C35, N1/N2/C1–C4 and N21/N22/C21–C24 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N5—H5N···N23 | 0.896 (13) | 2.129 (11) | 2.9883 (13) | 160.2 (12) |
N25—H25N···N3 | 0.908 (12) | 2.151 (12) | 3.0088 (15) | 157.2 (12) |
C25—H25···Cg1 | 0.95 | 2.76 | 3.6413 (14) | 156 |
C5—H5···Cg2 | 0.95 | 2.72 | 3.6179 (13) | 158 |
C12—H12···Cg3i | 0.95 | 2.93 | 3.6703 (17) | 135 |
C15—H15···Cg4ii | 0.95 | 2.60 | 3.5158 (15) | 161 |
Cg3···Cg3iii | 3.3071 (1) |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x+2, −y+1, −z+2; (iii) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C15H17N5 |
Mr | 267.34 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 120 |
a, b, c (Å) | 12.9926 (5), 21.1673 (7), 11.2622 (6) |
β (°) | 114.274 (5) |
V (Å3) | 2823.5 (2) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.50 × 0.38 × 0.20 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur (Sapphire2) diffractometer |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.942, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 21460, 4972, 3280 |
Rint | 0.035 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.029, 0.058, 0.83 |
No. of reflections | 4972 |
No. of parameters | 373 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.13, −0.16 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2009), CrysAlis RED (Oxford Diffraction, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al., 2008).
Cg1, Cg2, Cg3 and Cg4 are centroids of the C10–C15, C30–C35, N1/N2/C1–C4 and N21/N22/C21–C24 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N5—H5N···N23 | 0.896 (13) | 2.129 (11) | 2.9883 (13) | 160.2 (12) |
N25—H25N···N3 | 0.908 (12) | 2.151 (12) | 3.0088 (15) | 157.2 (12) |
C25—H25···Cg1 | 0.95 | 2.76 | 3.6413 (14) | 155.5 |
C5—H5···Cg2 | 0.95 | 2.72 | 3.6179 (13) | 157.9 |
C12—H12···Cg3i | 0.95 | 2.93 | 3.6703 (17) | 135.2 |
C15—H15···Cg4ii | 0.95 | 2.60 | 3.5158 (15) | 161.3 |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x+2, −y+1, −z+2. |
Acknowledgements
The financial support of this work by the Internal Founding Agency of Tomas Bata University in Zlin (project No. IGA/FT/2013/008) is gratefully acknowledged.
References
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The synthesis of purine derivatives bearing various substituents at C6 and N9 positions is closely related with the eventual biological activity of the final molecule. Recently, several 6,9-disubstituted purines were described as antibacterial (Tunçbilek et al., 2009), antileishmanial (Jorda et al., 2011) and antitumor (Cappellacci et al., 2011) agents. The title molecule, N-benzyl-9-isopropyl-9H-purin-6-amine, was prepared as a part of our ongoing research aimed at preparation of new disubstituted purine series.
The asymmetric unit of the title compound consists of two purine-based molecules slightly different in their geometries (Fig. 1). The dihedral angles between the best planes of the purine and benzene rings are 89.21 (3)° and 82.14 (4)°, respectively. The torsion angles N1—C1—N5—C9, C1—N5—C9—C10, N5—C9—C10—C11 and C5—N4—C6—C7 indicating the mutual orientation of substituents and purine ring are 2.85 (19), -110.7 (14), 33.8 (18) and 31.3 (18)°, respectively. The corresponding values of torsion angles for the second conformer are 0.44 (19), -96.7 (15), 35.5 (17) and 35.9 (18)°, respectively. The molecules within the asymmetric unit are linked by N5—H5N···N23 and N25—H25N···N3 hydrogen bonds (Table 1, Fig. 2) to form dimers with dihedral angles between the best planes of the two purines being 32.53 (3)°. In contrast, the benzene rings are essentially parallel with the dihedral angle of 2.88 (3)°. The crystal packing is further stabilized via short intermolecular non-bonding C—H···π contacts and π···π interactions (Table 1, Fig. 2). The interplanar distance between the adjacent purine best planes of the π···π stacked molecules is of 3.2583 (13) Å.