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Rac-5''-(4-Fluoro-benzyl-idene)-1'-(4-fluoro-phen-yl)-1''-methyl-1',2',3',5',6',7',8',8a'-octa-hydro-dispiro-[acenaphthyl-ene-1,3'-indolizine-2',3''-piperidine]-2,4''(1H)-dione.

ABSTRACT: In the title E isomer of the racemic compound, C37H32F2N2O2, the pyridinone ring adopts a twisted half-chair conformation with the N atom deviating by -0.355?(3)?Å and with the methyl-ene C atom next to octa-hydro-indolizine moiety deviating by 0.415?(3)?Å from the mean plane defined by other four atoms. In the octa-hydro-indolizine system, the pyrrolidine ring exhibits an envelope conformation with the fused methyne C atom deviating by 0.6496?(1)?Å from the mean plane defined by four other atoms, and the piperidine ring exhibits a distorted chair conformation as evident from the puckering parameters Q = 0.568?(2)?Å, ? = 1.0?(2) and ? = 256?(11)°. In the crystal, C-H?O inter-actions connect the mol-ecules into chains along [101].

SUBMITTER: Suresh J

PROVIDER: S-EPMC3588349 | biostudies-literature | 2013 Jan

REPOSITORIES: biostudies-literature

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rac-5''-(4-Fluoro-benzyl-idene)-1'-(4-fluoro-phen-yl)-1''-methyl-1',2',3',5',6',7',8',8a'-octa-hydro-dispiro-[acenaphthyl-ene-1,3'-indolizine-2',3''-piperidine]-2,4''(1H)-dione.

Suresh J J Nagalakshmi R A RA Sivakumar S S Kumar R Ranjith RR Lakshman P L Nilantha PL

Acta crystallographica. Section E, Structure reports online 20121222 Pt 1

In the title E isomer of the racemic compound, C37H32F2N2O2, the pyridinone ring adopts a twisted half-chair conformation with the N atom deviating by -0.355 (3) Å and with the methyl-ene C atom next to octa-hydro-indolizine moiety deviating by 0.415 (3) Å from the mean plane defined by other four atoms. In the octa-hydro-indolizine system, the pyrrolidine ring exhibits an envelope conformation with the fused methyne C atom deviating by 0.6496 (1) Å from the mean plane defined by four other atom ...[more]

PMID: 23476397

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