title: 2'-Hy-droxy-methyl-1'-(4-methyl-phen-yl)-2'-nitro-1',2',5',6',7',7a'-hexa-hydro-spiro-[indoline-3,3'-pyrrolizin]-2-one.
abstract: In the title compound, C(22)H(23)N(3)O(4), the tolyl ring is almost perpendicular [83.86 (7)°] to the best plane through the eight atoms of the pyrrolizidine ring system. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯O hydrogen bond. The crystal packing features inversion dimers with R(2) (2)(8) motifs linked by pairs of N-H⋯O hydrogen bonds.
authors.forename: S
authors.initials: S
authors.lastname: Sathya
authors.forename: Sundari
authors.initials: S
authors.lastname: Bhaskaran
authors.forename: G
authors.initials: G
authors.lastname: Usha
authors.forename: N
authors.initials: N
authors.lastname: Sivakumar
authors.forename: M
authors.initials: M
authors.lastname: Bakthadoss