(4S)-3-Methyl-5,6,7,8-tetra-hydro-4H-spiro-[[1,2]oxazolo[5,4-b]quinoline-4,3'-indole]-2',5-dione.
In the title compound, C18H15N3O3, the dihedral angle between the mean planes of the quinoline and indole ring systems [r.m.s. deviations = 0.189 (2) and 0.027 (2) Å, respectively] is 88.65 (5)°. The cyclo-hexene ring of the quinoline ring system adopts an envelope conformation with the central -CH2- C atom as the flap. In the crystal, mol-ecules are linked by two pairs of N-H⋯O hydrogen bonds, forming inversion dimers, and enclosing R 2 (2)(14) ring motifs. This arrangement results in the formation of chains propagating along [100].
Department of Physics, Presidency College (Autonomous), Chennai 600 005, India.
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Govindan
Industrial Chemistry Laboratory, Central Leather Research Institute, Adyar, Chennai 600 020, India.
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Yuvaraj
Industrial Chemistry Laboratory, Central Leather Research Institute, Adyar, Chennai 600 020, India.
B S R
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Reddy
Department of Chemistry, D. G. Vaishnav College (Autonomous), Arumbakkam, Chennai 600 106, India.
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Bangaru Sudarsan Alwar
Department of Physics, Presidency College (Autonomous), Chennai 600 005, India ; Department of Chemistry, D. G. Vaishnav College (Autonomous), Arumbakkam, Chennai 600 106, India.
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Subbiahpandi