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. 2014 Jan 18;70(Pt 2):o173.
doi: 10.1107/S1600536814000191. eCollection 2014 Feb 1.

(4S)-5'-Chloro-3,7,7-trimethyl-5,6,7,8-tetra-hydro-4H-spiro-[1,2-oxazolo[5,4-b]quinoline-4,3'-indole]-2',5-dione

E Govindan  1 , Panneerselvam Yuvaraj  2 , Boreddy Siva Rami Reddy  2 , K Premalatha  3 , A Subbiahpandi  1
Affiliations

(4S)-5'-Chloro-3,7,7-trimethyl-5,6,7,8-tetra-hydro-4H-spiro-[1,2-oxazolo[5,4-b]quinoline-4,3'-indole]-2',5-dione

E Govindan et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title compound, C20H18ClN3O3, the five- and six-membered heterocycles fused through a spiro C atom are inclined to each other at an angle of 87.4 (1)°. In the tricyclic ring system, the cyclo-hexene ring adopts an envelope conformation with the spiro atom as the flap. In the crystal, two sets of N-H⋯O hydrogen bonds link the mol-ecules into columns containing centrosymmetric R 2 (2)(7) ring motifs and propagating along the b-axis direction.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound, showing the atomic numbering and displacement ellipsoids drawn at 30% probability level.
See this image and copyright information in PMC

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