title: 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, C(24)H(21)ClN(4)O(2)S, 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.
authors.affiliation: School of of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, People's Republic of China.
authors.forename: Bo
authors.initials: B
authors.lastname: Liao
authors.forename: Aiting
authors.initials: A
authors.lastname: Zheng
authors.forename: Bin
authors.initials: B
authors.lastname: Liu