1′-(2-Chloro-phen-yl)-5,6,5′,6′,7′, 7a'-hexa-hydro-1′H,1″H-dispiro-[imidazo[2,1-b][1,3]thia-zole-2, 2′-pyrrolizine-3′(2′H),3″-indole]-2″,3(2H, 3″H)-dione

Abstract

In the title compound, C24H21ClN4O 2S, the two adjacent spiro junctions link an almost planar (r.m.s. deviation = 0.017 Å) 2-oxindole ring, a hexa-hydro-1H-pyrrolizine ring and a tetra-hydro-imidazo[2,1-b]thia-zole ring. In the crystal, inversion dimers linked by pairs of N - H⋯N hydrogen bonds occur, generating an R 2 2(16) loop.