Ontology highlight
ABSTRACT:
SUBMITTER: Jagadeesan G
PROVIDER: S-EPMC3569800 | biostudies-other | 2013 Feb
REPOSITORIES: biostudies-other
Acta crystallographica. Section E, Structure reports online 20130123 Pt 2
In the title compound, C(19)H(20)N(2)O(6), the pyrone and pyran rings adopt envelope conformations with the same common C atom as the flap, the dihedral angle between the planes of the remaining ring atoms being 68.27 (4)°. The planar atoms of the pyran ring and the diaza-cyclic ring are almost coplanar, the dihedral angle between their mean planes being 3.29 (7)°. Moreover, the planar atoms of the pyrone ring and benzene ring of the coumarin unit are also close to coplanar, the dihedral angle b ...[more]