4-(5,6-Dihydrobenzimidazo[1,2-c]quinazolin-6-yl)benzene-1,3-diol dimethyl sulfoxide monosolvate
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چکیده
In the title solvated benzimidazole compound, C(20)H(15)N(3)O(2)·C(2)H(6)OS, both the benzimidazole fused-ring system and the complete dimethyl sulfoxide solvent mol-ecule are disordered over two sets of sites, in 0.750 (5):0.250 (5) and 0.882 (4):0.118 (4) ratios, respectively. The conformation of the pyrimidine ring is close to a half-chair for the major disorder component, whereas for the minor component it is close to a boat. The dihy-droxy-phenyl ring is almost perpendicular to the mean plane of the benzimidazole ring [dihedral angle = 87.3 (2)° for the major disorder component and 88.3 (5)° for the minor disorder component]. In the crystal, mol-ecules are linked into layers parallel to (110) by O-H⋯N and C-H⋯O hydrogen bonds. A bifurcated O-H⋯(O,S) bond links the benzimidazole and solvent mol-ecules.
منابع مشابه
2-(5,6-Dihydrobenzimidazo[1,2-c]quinazolin-6-yl)-6-ethoxyphenol
In the title compound, C(22)H(19)N(3)O(2), the phenol ring forms dihedral angles of 88.93 (10) and 87.95 (12)° with the benzimidazole system and the quinazoline benzene ring, respectively. In the crystal, mol-ecules are linked via O-H⋯N hydrogen bonds into infinite chains along [100]. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring.
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