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(5R)-Ethyl 6-benzyl-8,8-dimethyl-7,9-dioxo-1-oxa-2,6-diaza-spiro-[4.4]non-2-ene-3-carboxyl-ate.

ABSTRACT: In the title compound, C(18)H(20)N(2)O(5), the pyrrolidine ring adopts an envelope conformation with the C atom bonded to the methyl groups as the flap. The dihydro-isoxazole ring is essentially planar (r.m.s. deviation = 0.041?Å) and forms a dihedral angle of 65.19?(6)° with the phenyl ring. In the crystal, neighbouring mol-ecules are linked into chains along [110] by inter-molecular C-H?O hydrogen bonds and weak C-H?? inter-actions involving the phenyl ring.

SUBMITTER: Bathich Y

PROVIDER: S-EPMC2971144 | biostudies-literature | 2009 Oct

REPOSITORIES: biostudies-literature

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(5R)-Ethyl 6-benzyl-8,8-dimethyl-7,9-dioxo-1-oxa-2,6-diaza-spiro-[4.4]non-2-ene-3-carboxyl-ate.

Bathich Yaser Y Mohammat Mohd Fazli MF Hamzah Ahmad Sazali AS Goh Jia Hao JH Fun Hoong-Kun HK

Acta crystallographica. Section E, Structure reports online 20091028 Pt 11

In the title compound, C(18)H(20)N(2)O(5), the pyrrolidine ring adopts an envelope conformation with the C atom bonded to the methyl groups as the flap. The dihydro-isoxazole ring is essentially planar (r.m.s. deviation = 0.041 Å) and forms a dihedral angle of 65.19 (6)° with the phenyl ring. In the crystal, neighbouring mol-ecules are linked into chains along [110] by inter-molecular C-H⋯O hydrogen bonds and weak C-H⋯π inter-actions involving the phenyl ring. ...[more]

PMID: 21578472

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