organic compounds
2-(2-Hydroxyethylamino)-3-phenyl-1-benzofuro[3,2-d]pyrimidin-4(3H)-one dichloromethane hemisolvate
aDepartment of Neurology, Affiliated Renmin Hospital, Yunyang Medical College, Shiyan 442000, People's Republic of China, bDepartment of Human Anatomy, Yunyang Medical College, Shiyan 442000, People's Republic of China, and cDepartment of Medicinal Chemistry, Yunyang Medical College, Shiyan 442000, People's Republic of China
*Correspondence e-mail: zhangzh8875301@yahoo.com.cn
In the title compound, C18H15N3O3·0.5CH2Cl2, the fused ring benzofuro[2,3-d]pyrimidine system is essentially planar [maximum deviation 0.029 (1) Å]. The planes of the pyrimidinone and phenyl rings are nearly perpendicular [dihedral angle = 87.50 (14)°]. The packing of the molecules in the is governed mainly by intermolecular O—H⋯O and N—H⋯O hydrogen-bonding interactions and intermolecular π–π interactions between benzofuro[3,2-d]pyrimidine units [the interplanar distances are ca 3.4 and 3.5 Å, and the distances between adjacent ring centroids are in the range 3.64 (1)–3.76 (1) Å]. The dichloromethane solvent molecule lies on a special position.
Related literature
For the preparation and biological activity of benzofuropyrimidine derivatives, see: Moneam et al. (2004); Bodke et al. (2003). For π-π stacking interactions, see: Hu et al. (2005, 2006, 2007, 2008); Janiak (2000). For the structures of other fused pyrimidinone derivatives, see: Hu et al. (2005, 2006, 2007, 2008).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supporting information
10.1107/S1600536809017814/at2780sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809017814/at2780Isup2.hkl
All H atoms were located in difference maps and treated as riding atoms with C—H = 0.93 Å, Uiso=1.2Ueq (C) for Csp2, C—H = 0.97 Å, Uiso = 1.2Ueq (C) for CH2, O—H = 0.82 Å, Uiso = 1.2Ueq (C) for OH, N—H = 0.86 Å, Uiso = 1.2Ueq (N) for NH.
Data collection: SMART (Bruker, 2001); cell
SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C18H15N3O3·0.5CH2Cl2 | F(000) = 1512 |
Mr = 363.80 | Dx = 1.403 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 2289 reflections |
a = 26.928 (2) Å | θ = 2.5–25.0° |
b = 7.8931 (7) Å | µ = 0.25 mm−1 |
c = 17.3134 (15) Å | T = 292 K |
β = 110.638 (2)° | Needle, colourless |
V = 3443.7 (5) Å3 | 0.30 × 0.20 × 0.20 mm |
Z = 8 |
Bruker SMART 4K CCD area-detector diffractometer | 3008 independent reflections |
Radiation source: fine-focus sealed tube | 2321 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −24→32 |
Tmin = 0.941, Tmax = 0.960 | k = −9→9 |
6773 measured reflections | l = −20→20 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.066 | H-atom parameters constrained |
wR(F2) = 0.203 | w = 1/[σ2(Fo2) + (0.1003P)2 + 4.9568P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max < 0.001 |
3008 reflections | Δρmax = 0.74 e Å−3 |
232 parameters | Δρmin = −0.46 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0023 (4) |
C18H15N3O3·0.5CH2Cl2 | V = 3443.7 (5) Å3 |
Mr = 363.80 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 26.928 (2) Å | µ = 0.25 mm−1 |
b = 7.8931 (7) Å | T = 292 K |
c = 17.3134 (15) Å | 0.30 × 0.20 × 0.20 mm |
β = 110.638 (2)° |
Bruker SMART 4K CCD area-detector diffractometer | 3008 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2321 reflections with I > 2σ(I) |
Tmin = 0.941, Tmax = 0.960 | Rint = 0.025 |
6773 measured reflections |
R[F2 > 2σ(F2)] = 0.066 | 0 restraints |
wR(F2) = 0.203 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.74 e Å−3 |
3008 reflections | Δρmin = −0.46 e Å−3 |
232 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 | Occ. (<1) | |
C1 | 0.00474 (12) | 0.9366 (4) | 0.1209 (2) | 0.0562 (8) | |
C2 | −0.04614 (14) | 0.9437 (5) | 0.1234 (2) | 0.0724 (10) | |
H2 | −0.0549 | 1.0163 | 0.1589 | 0.087* | |
C3 | −0.08262 (14) | 0.8376 (6) | 0.0704 (3) | 0.0828 (13) | |
H3 | −0.1172 | 0.8374 | 0.0703 | 0.099* | |
C4 | −0.06967 (14) | 0.7306 (6) | 0.0171 (3) | 0.0772 (11) | |
H4 | −0.0958 | 0.6618 | −0.0185 | 0.093* | |
C5 | −0.01884 (12) | 0.7234 (4) | 0.0155 (2) | 0.0626 (9) | |
H5 | −0.0103 | 0.6509 | −0.0203 | 0.075* | |
C6 | 0.01922 (11) | 0.8287 (4) | 0.06958 (18) | 0.0502 (7) | |
C7 | 0.07480 (11) | 0.8619 (4) | 0.08694 (17) | 0.0456 (7) | |
C8 | 0.08819 (11) | 0.9878 (4) | 0.14460 (18) | 0.0494 (7) | |
C9 | 0.13833 (11) | 1.0657 (4) | 0.17189 (17) | 0.0488 (7) | |
C10 | 0.15717 (11) | 0.8521 (3) | 0.08219 (16) | 0.0423 (7) | |
C11 | 0.18301 (12) | 0.6367 (4) | 0.0038 (2) | 0.0534 (8) | |
H11A | 0.1605 | 0.5601 | 0.0205 | 0.064* | |
H11B | 0.2159 | 0.5778 | 0.0106 | 0.064* | |
C12 | 0.15587 (12) | 0.6799 (5) | −0.0862 (2) | 0.0617 (9) | |
H12A | 0.1455 | 0.5770 | −0.1185 | 0.074* | |
H12B | 0.1242 | 0.7464 | −0.0936 | 0.074* | |
C14 | 0.22429 (10) | 1.0652 (4) | 0.15552 (16) | 0.0443 (7) | |
C15 | 0.23170 (12) | 1.1918 (4) | 0.10617 (18) | 0.0525 (8) | |
H15 | 0.2036 | 1.2268 | 0.0597 | 0.063* | |
C16 | 0.28099 (13) | 1.2672 (4) | 0.1257 (2) | 0.0591 (8) | |
H16 | 0.2862 | 1.3529 | 0.0925 | 0.071* | |
C17 | 0.32232 (12) | 1.2151 (4) | 0.1946 (2) | 0.0577 (8) | |
H17 | 0.3555 | 1.2653 | 0.2078 | 0.069* | |
C18 | 0.31458 (12) | 1.0894 (4) | 0.2437 (2) | 0.0603 (9) | |
H18 | 0.3426 | 1.0553 | 0.2903 | 0.072* | |
C19 | 0.26543 (12) | 1.0123 (4) | 0.22476 (19) | 0.0533 (8) | |
H19 | 0.2603 | 0.9267 | 0.2581 | 0.064* | |
Cl1 | 0.04437 (10) | 0.5409 (4) | 0.71999 (15) | 0.1632 (11) | |
N1 | 0.10909 (9) | 0.7873 (3) | 0.05548 (14) | 0.0463 (6) | |
N2 | 0.17227 (9) | 0.9896 (3) | 0.13565 (14) | 0.0439 (6) | |
N3 | 0.19460 (9) | 0.7832 (3) | 0.05727 (14) | 0.0495 (6) | |
H3B | 0.2259 | 0.8269 | 0.0733 | 0.059* | |
O1 | 0.04639 (8) | 1.0374 (3) | 0.16786 (13) | 0.0602 (6) | |
O2 | 0.15384 (9) | 1.1865 (3) | 0.21917 (14) | 0.0665 (7) | |
O3 | 0.19168 (9) | 0.7736 (4) | −0.11261 (14) | 0.0768 (8) | |
H3A | 0.1774 | 0.7980 | −0.1615 | 0.115* | |
C20 | 0.0000 | 0.509 (3) | 0.7500 | 0.394 (18) | |
H20A | 0.0194 | 0.4328 | 0.7943 | 0.473* | 0.5 |
H20B | −0.0194 | 0.4329 | 0.7057 | 0.473* | 0.5 |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0478 (17) | 0.068 (2) | 0.0549 (18) | 0.0005 (15) | 0.0201 (14) | 0.0145 (16) |
C2 | 0.053 (2) | 0.099 (3) | 0.073 (2) | 0.011 (2) | 0.0313 (18) | 0.018 (2) |
C3 | 0.0431 (19) | 0.120 (3) | 0.087 (3) | −0.001 (2) | 0.0251 (19) | 0.029 (3) |
C4 | 0.0456 (19) | 0.093 (3) | 0.084 (3) | −0.0150 (18) | 0.0124 (18) | 0.017 (2) |
C5 | 0.0516 (18) | 0.061 (2) | 0.070 (2) | −0.0065 (15) | 0.0149 (16) | 0.0112 (17) |
C6 | 0.0435 (16) | 0.0517 (17) | 0.0555 (17) | 0.0010 (13) | 0.0178 (13) | 0.0140 (14) |
C7 | 0.0438 (15) | 0.0473 (16) | 0.0449 (15) | −0.0002 (12) | 0.0148 (12) | 0.0062 (13) |
C8 | 0.0437 (16) | 0.0604 (18) | 0.0476 (16) | 0.0026 (13) | 0.0203 (13) | 0.0019 (14) |
C9 | 0.0524 (17) | 0.0546 (18) | 0.0395 (15) | 0.0007 (14) | 0.0164 (13) | −0.0018 (14) |
C10 | 0.0435 (15) | 0.0447 (15) | 0.0380 (14) | −0.0031 (12) | 0.0134 (11) | 0.0018 (12) |
C11 | 0.0513 (17) | 0.0456 (16) | 0.068 (2) | −0.0010 (13) | 0.0265 (15) | −0.0059 (15) |
C12 | 0.0446 (17) | 0.073 (2) | 0.065 (2) | −0.0032 (15) | 0.0161 (15) | −0.0223 (17) |
C14 | 0.0429 (15) | 0.0483 (16) | 0.0417 (15) | −0.0034 (12) | 0.0149 (12) | −0.0063 (13) |
C15 | 0.0495 (17) | 0.0603 (19) | 0.0460 (16) | −0.0003 (14) | 0.0149 (13) | 0.0063 (14) |
C16 | 0.0593 (19) | 0.0572 (19) | 0.067 (2) | −0.0058 (15) | 0.0294 (16) | 0.0038 (16) |
C17 | 0.0450 (17) | 0.0612 (19) | 0.069 (2) | −0.0117 (14) | 0.0225 (15) | −0.0185 (17) |
C18 | 0.0444 (17) | 0.073 (2) | 0.0546 (18) | −0.0015 (15) | 0.0068 (14) | −0.0076 (17) |
C19 | 0.0525 (18) | 0.0566 (18) | 0.0469 (17) | −0.0055 (14) | 0.0126 (14) | 0.0013 (14) |
Cl1 | 0.1220 (17) | 0.241 (3) | 0.1193 (16) | −0.0455 (18) | 0.0331 (14) | −0.0050 (18) |
N1 | 0.0406 (13) | 0.0489 (14) | 0.0493 (13) | −0.0041 (10) | 0.0158 (10) | −0.0024 (11) |
N2 | 0.0413 (13) | 0.0491 (14) | 0.0412 (12) | −0.0043 (10) | 0.0142 (10) | −0.0030 (11) |
N3 | 0.0408 (13) | 0.0573 (15) | 0.0520 (14) | −0.0054 (11) | 0.0182 (11) | −0.0109 (12) |
O1 | 0.0528 (13) | 0.0745 (15) | 0.0603 (13) | 0.0037 (11) | 0.0286 (11) | −0.0056 (11) |
O2 | 0.0653 (14) | 0.0744 (16) | 0.0605 (13) | −0.0098 (12) | 0.0229 (11) | −0.0266 (12) |
O3 | 0.0628 (15) | 0.110 (2) | 0.0520 (13) | −0.0030 (14) | 0.0131 (11) | 0.0062 (13) |
C20 | 0.137 (13) | 0.56 (5) | 0.44 (4) | 0.000 | 0.038 (18) | 0.000 |
C1—O1 | 1.381 (4) | C11—H11A | 0.9700 |
C1—C6 | 1.383 (5) | C11—H11B | 0.9700 |
C1—C2 | 1.387 (5) | C12—O3 | 1.413 (4) |
C2—C3 | 1.369 (6) | C12—H12A | 0.9700 |
C2—H2 | 0.9300 | C12—H12B | 0.9700 |
C3—C4 | 1.383 (6) | C14—C15 | 1.375 (4) |
C3—H3 | 0.9300 | C14—C19 | 1.379 (4) |
C4—C5 | 1.380 (5) | C14—N2 | 1.448 (3) |
C4—H4 | 0.9300 | C15—C16 | 1.383 (4) |
C5—C6 | 1.393 (4) | C15—H15 | 0.9300 |
C5—H5 | 0.9300 | C16—C17 | 1.376 (5) |
C6—C7 | 1.443 (4) | C16—H16 | 0.9300 |
C7—N1 | 1.360 (3) | C17—C18 | 1.370 (5) |
C7—C8 | 1.364 (4) | C17—H17 | 0.9300 |
C8—O1 | 1.379 (3) | C18—C19 | 1.387 (4) |
C8—C9 | 1.405 (4) | C18—H18 | 0.9300 |
C9—O2 | 1.230 (4) | C19—H19 | 0.9300 |
C9—N2 | 1.412 (4) | Cl1—C20 | 1.483 (5) |
C10—N1 | 1.315 (3) | N3—H3B | 0.8600 |
C10—N3 | 1.343 (3) | O3—H3A | 0.8200 |
C10—N2 | 1.391 (3) | C20—H20A | 0.9700 |
C11—N3 | 1.445 (4) | C20—H20B | 0.9700 |
C11—C12 | 1.508 (5) | ||
O1—C1—C6 | 112.2 (3) | C11—C12—H12A | 110.0 |
O1—C1—C2 | 124.3 (3) | O3—C12—H12B | 110.0 |
C6—C1—C2 | 123.4 (3) | C11—C12—H12B | 110.0 |
C3—C2—C1 | 116.0 (4) | H12A—C12—H12B | 108.4 |
C3—C2—H2 | 122.0 | C15—C14—C19 | 120.8 (3) |
C1—C2—H2 | 122.0 | C15—C14—N2 | 119.5 (2) |
C2—C3—C4 | 122.1 (3) | C19—C14—N2 | 119.7 (3) |
C2—C3—H3 | 119.0 | C14—C15—C16 | 119.8 (3) |
C4—C3—H3 | 119.0 | C14—C15—H15 | 120.1 |
C5—C4—C3 | 121.6 (4) | C16—C15—H15 | 120.1 |
C5—C4—H4 | 119.2 | C17—C16—C15 | 119.8 (3) |
C3—C4—H4 | 119.2 | C17—C16—H16 | 120.1 |
C4—C5—C6 | 117.5 (4) | C15—C16—H16 | 120.1 |
C4—C5—H5 | 121.2 | C18—C17—C16 | 120.1 (3) |
C6—C5—H5 | 121.2 | C18—C17—H17 | 120.0 |
C1—C6—C5 | 119.5 (3) | C16—C17—H17 | 120.0 |
C1—C6—C7 | 105.1 (3) | C17—C18—C19 | 120.8 (3) |
C5—C6—C7 | 135.4 (3) | C17—C18—H18 | 119.6 |
N1—C7—C8 | 124.5 (3) | C19—C18—H18 | 119.6 |
N1—C7—C6 | 129.7 (3) | C14—C19—C18 | 118.7 (3) |
C8—C7—C6 | 105.8 (3) | C14—C19—H19 | 120.7 |
C7—C8—O1 | 112.8 (3) | C18—C19—H19 | 120.7 |
C7—C8—C9 | 122.7 (3) | C10—N1—C7 | 114.5 (2) |
O1—C8—C9 | 124.3 (3) | C10—N2—C9 | 123.0 (2) |
O2—C9—C8 | 128.6 (3) | C10—N2—C14 | 120.7 (2) |
O2—C9—N2 | 120.3 (3) | C9—N2—C14 | 116.3 (2) |
C8—C9—N2 | 111.1 (3) | C10—N3—C11 | 120.8 (2) |
N1—C10—N3 | 119.1 (3) | C10—N3—H3B | 119.6 |
N1—C10—N2 | 123.9 (2) | C11—N3—H3B | 119.6 |
N3—C10—N2 | 116.9 (2) | C8—O1—C1 | 104.0 (2) |
N3—C11—C12 | 113.4 (3) | C12—O3—H3A | 109.5 |
N3—C11—H11A | 108.9 | Cl1—C20—Cl1i | 161 (2) |
C12—C11—H11A | 108.9 | Cl1—C20—H20A | 96.0 |
N3—C11—H11B | 108.9 | Cl1i—C20—H20A | 96.0 |
C12—C11—H11B | 108.9 | Cl1—C20—H20B | 96.0 |
H11A—C11—H11B | 107.7 | Cl1i—C20—H20B | 96.0 |
O3—C12—C11 | 108.4 (2) | H20A—C20—H20B | 103.4 |
O3—C12—H12A | 110.0 | ||
O1—C1—C2—C3 | 178.0 (3) | C16—C17—C18—C19 | 0.4 (5) |
C6—C1—C2—C3 | −0.8 (5) | C15—C14—C19—C18 | −0.1 (5) |
C1—C2—C3—C4 | −0.5 (6) | N2—C14—C19—C18 | −178.4 (3) |
C2—C3—C4—C5 | 1.0 (6) | C17—C18—C19—C14 | −0.2 (5) |
C3—C4—C5—C6 | −0.2 (5) | N3—C10—N1—C7 | 177.5 (2) |
O1—C1—C6—C5 | −177.3 (3) | N2—C10—N1—C7 | −2.4 (4) |
C2—C1—C6—C5 | 1.6 (5) | C8—C7—N1—C10 | −3.2 (4) |
O1—C1—C6—C7 | 1.3 (3) | C6—C7—N1—C10 | 177.5 (3) |
C2—C1—C6—C7 | −179.8 (3) | N1—C10—N2—C9 | 5.1 (4) |
C4—C5—C6—C1 | −1.0 (5) | N3—C10—N2—C9 | −174.8 (2) |
C4—C5—C6—C7 | −179.1 (3) | N1—C10—N2—C14 | −173.4 (3) |
C1—C6—C7—N1 | 177.8 (3) | N3—C10—N2—C14 | 6.7 (4) |
C5—C6—C7—N1 | −3.9 (6) | O2—C9—N2—C10 | 179.6 (3) |
C1—C6—C7—C8 | −1.6 (3) | C8—C9—N2—C10 | −1.9 (4) |
C5—C6—C7—C8 | 176.7 (3) | O2—C9—N2—C14 | −1.9 (4) |
N1—C7—C8—O1 | −178.1 (2) | C8—C9—N2—C14 | 176.7 (2) |
C6—C7—C8—O1 | 1.4 (3) | C15—C14—N2—C10 | 88.1 (3) |
N1—C7—C8—C9 | 6.4 (5) | C19—C14—N2—C10 | −93.5 (3) |
C6—C7—C8—C9 | −174.1 (3) | C15—C14—N2—C9 | −90.5 (3) |
C7—C8—C9—O2 | 175.0 (3) | C19—C14—N2—C9 | 87.9 (3) |
O1—C8—C9—O2 | 0.0 (5) | N1—C10—N3—C11 | −1.8 (4) |
C7—C8—C9—N2 | −3.5 (4) | N2—C10—N3—C11 | 178.1 (2) |
O1—C8—C9—N2 | −178.4 (3) | C12—C11—N3—C10 | 82.1 (3) |
N3—C11—C12—O3 | 66.0 (3) | C7—C8—O1—C1 | −0.6 (3) |
C19—C14—C15—C16 | 0.2 (5) | C9—C8—O1—C1 | 174.8 (3) |
N2—C14—C15—C16 | 178.6 (3) | C6—C1—O1—C8 | −0.5 (3) |
C14—C15—C16—C17 | −0.1 (5) | C2—C1—O1—C8 | −179.4 (3) |
C15—C16—C17—C18 | −0.2 (5) |
Symmetry code: (i) −x, y, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3B···O3ii | 0.86 | 2.23 | 2.903 (3) | 136 |
O3—H3A···O2iii | 0.82 | 1.94 | 2.744 (3) | 167 |
Symmetry codes: (ii) −x+1/2, −y+3/2, −z; (iii) x, −y+2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C18H15N3O3·0.5CH2Cl2 |
Mr | 363.80 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 292 |
a, b, c (Å) | 26.928 (2), 7.8931 (7), 17.3134 (15) |
β (°) | 110.638 (2) |
V (Å3) | 3443.7 (5) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.25 |
Crystal size (mm) | 0.30 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART 4K CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.941, 0.960 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6773, 3008, 2321 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.066, 0.203, 1.04 |
No. of reflections | 3008 |
No. of parameters | 232 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.74, −0.46 |
Computer programs: SMART (Bruker, 2001), SAINT-Plus (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3B···O3i | 0.86 | 2.23 | 2.903 (3) | 135.5 |
O3—H3A···O2ii | 0.82 | 1.94 | 2.744 (3) | 166.7 |
Symmetry codes: (i) −x+1/2, −y+3/2, −z; (ii) x, −y+2, z−1/2. |
Acknowledgements
We gratefully acknowledge financial support of this work by the Key Science Research Project of Hubei Provincial Department of Education (No. D200724001) and the Science Research Project of Yunyang Medical College (No. 2006QDJ16).
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Derivatives of benzofuropyrimidines are of great importance because of their remarkable biological properties, such as the interesting analgesic, antihypertensive, antipyretic, antiviral, and anti-inflammatory activities (Moneam et al., 2004 and Bodke et al., 2003). Some X-ray crystal structures of benzofuro[3,2-d]pyrimidinone derivatives have been reported (Hu et al., 2005, 2006, 2007, 2008). The heterocyclic title compound (I) may be used as a new precursor for obtaining bioactive molecules and its structure is presented here (Fig.1).
In the molecule of (I), all ring atoms of benzofuro[2,3-d]pyrimidine system are essentially coplanar, with maximum deviations -0.029 (1)Å and 0.027 (2) Å for C7 and N2, respectively. The pyrimidinone ring and the phenyl (C14—C19) ring are nearly perpendicular [dihedral angle = 87.50 (14)]. Intermolecular O—H···O and N—H···O hydrogen-bonding interactions (Table 1) link the molecules, helping to stabilize the crystal structure. Further stability the crystal structure is provided by offset π-π stacking interactions (Janiak, 2000) involving the fused benzofuro[2,3-d]pyrimidin system moeties. The interplanar distance are ca 3.5 Å, with distances between adjacent ring centroids of 3.6 (1)–3.8 (1)Å [symmetry code relating the adjacent rings: -x, 2 - y, -z].