Ethyl 2-amino-4-(4-methyl-1,3-thia­zol-5-yl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carboxyl­ate

There are two independent mol­ecules in the asymmetric unit of the title compound, C(19)H(16)N(2)O(5)S, in which the thia­zole rings make dihedral angles of 80.89 (11) and 84.81 (11)° with the pyrano[3,2-c]chromene ring systems. An intra­molecular N—H⋯O hydrogen bond involving the amino group occurs...

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Detalles Bibliográficos
Autores principales: Karthikeyan, V., Ramkumar, V., Karunakaran, R. Joel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2013
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3884413/
https://www.ncbi.nlm.nih.gov/pubmed/24427048
http://dx.doi.org/10.1107/S1600536813021703
Descripción
Sumario:There are two independent mol­ecules in the asymmetric unit of the title compound, C(19)H(16)N(2)O(5)S, in which the thia­zole rings make dihedral angles of 80.89 (11) and 84.81 (11)° with the pyrano[3,2-c]chromene ring systems. An intra­molecular N—H⋯O hydrogen bond involving the amino group occurs in each independent mol­ecule. In the crystal, the amino groups are involved in N—H⋯O and N—H⋯N hydrogen bonds.

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