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ABSTRACT:
SUBMITTER: Benaka Prasad SB
PROVIDER: S-EPMC4647411 | biostudies-literature | 2015 Oct
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Crystallographic communications 20150912 Pt 10
The title compound, C13H13N2O3, a hydantoin derivative, crystallized with two mol-ecules (A and B) in an asymmetric unit. In mol-ecule A, the imidazolidine ring is twisted about the C-N bond involving the spiro C atom, while in mol-ecule B this ring is flat (r.m.s. deviation = 0.010 Å). The pyran rings in both mol-ecules have distorted half-chair conformations. The mean plane of the imidazolidine ring is inclined to the aromatic ring of the chroman unit by 79.71 (11)° in mol-ecule A and 82.83 (1 ...[more]