(Z)-Ethyl 2-cyano-2-{2-[5,6-dimethyl-4-(thiophen-2-yl)-1H-pyrazolo[3,4-b]pyridin-3-yl]hydrazinylidene}acetate
نویسندگان
چکیده
In the title compound, C(17)H(16)N(6)O(2)S, an intra-molecular N-H⋯O inter-action generates an S(6) ring. The pyridine ring makes a dihedral angle of 71.38 (11)° with the thio-phene ring. In the crystal, mol-ecules are linked by a pair of N-H⋯N hydrogen bonds, forming an inversion dimer. The dimers are stacked in columns along the b axis through weak inter-molecular C-H⋯N hydrogen bonds.
منابع مشابه
5,6-Dimethyl-4-(thiophen-2-yl)-1H-pyrazolo[3,4-b]pyridin-3-amine
In the title mol-ecule, C(12)H(12)N(4)S, the thio-phene ring is disordered over two orientations with a refined site-occupancy ratio of 0.777 (4):0.223 (4). The pyrazolo-pyridine ring system is essentially planar with an r.m.s. deviation of 0.0069 (3) Å and makes dihedral angles of 82.8 (2) and 72.6 (5)°, respectively, with the major and minor components of the thio-phene ring. In the crystal, ...
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The central eight-membered ring of the title compound, C40H36N8O2, deviates from the ideal boat conformation because the bond between the exo-ethyl-ene group and the adjacent N atom is twisted by 60.0 (4)° due to steric hindrance. Its adjacent benzene and pyrazole rings are oriented almost perpendicular to each other, making a dihedral angle of 85.8 (3)°. In the crystal, the mol-ecules are link...
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عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011