Crystal structure of ethyl 2-phenyl-4(prop-2-yn-1-yloxy)-5,6,7,8-tetrahydro-pyrido[4 ',3 ':4,5]thieno[2,3-d]pyrimidine-7-carboxylate

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AKKURT M., Smolenski V. A., Mohamed S. K., Jasinski J. P., Ahmed E. K., Albayati M. R.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.71, 2015 (ESCI)

• Publication Type: Article / Article
• Volume: 71
• Publication Date: 2015
• Doi Number: 10.1107/s2056989015018447
• Journal Name: ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
• Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
• Erciyes University Affiliated: Yes

Abstract

In the title compound, C21H19N3O3S, the 5,6,7,8-tetrahydropyridine ring adopts a half -chair conformation. The fusedthieno[2,3-d]pyrimidine ring system is essentially planar (r.m.s. deviation = 0.001 angstrom) and forms a dihedral angle of 2.66 (6)degrees with the attached phenyl ring. The three-dimensional crystal packing is stabilized by C-H center dot center dot center dot O and C-H center dot center dot center dot N hydrogen bonds and C-H center dot center dot center dot pi interactions.