7′-Nitro-6′-phenyl-1′,6′,7′,7a′-tetrahydro-spiro[indeno[1,2-b]quinoxaline-11,5′-pyrrolo[1,2-c][1,3]thiazole]

Abstract

In the title compound, C26H20N4O2S, the thiazole and pyrrolidine rings adopt envelope conformations with the respective flap atoms being the N atom and the nitro-bearing C atom. The phenyl and indenoquinoxaline planes are oriented at an angle of 66.72 (1)° to each other. The molecular structure features two intramolecular interactions, viz. C—H...N and C—H...O. In the crystal, the molecules are connected through C—H...N and C—H...O interactions, forming ring motifs [two R21(7), R22(14), R22(22) and R22(16)]. These ring motifs are connected through a C(9) motif chain.

Keywords

• crystal structure
• spiro compound
• quinoxaline
• thiazole
• molecular conformations