Abstract
In the title compound, C29H23ClN4O4, the quinazoline-indole system and the indolin-2-one system are each essentially planar, with maximum deviations from their mean planes of 0.150 (2) and 0.072 (2) Å, respectively. The central pyrrolidine ring adopts a twisted conformation on the C—C bond involving the spiro C atoms. Its mean plane forms dihedral angles of 83.37 (9) and 86.56 (8)°, respectively, with the indole rings of the indolin-2-one and quinazoline-indole systems. In the crystal, molecules are linked via pairs of N—H⋯O hydrogen bonds, forming inversion dimers. The dimers are linked via C—H⋯O hydrogen bonds, forming chains propagating along [001].
Highlights
In the title compound, C29H23ClN4O4, the quinazoline-indole system and the indolin-2-one system are each essentially planar, with maximum deviations from their mean planes of
The central pyrrolidine ring adopts a twisted conformation on the C—C bond involving the spiro C atoms
The dimers are linked via C—H O hydrogen bonds, forming chains propagating along [001]
Summary
Ethyl 80 0 -chloro-10 -methyl-2,120 0 -dioxo120 0 H-dispiro[indoline-3,20 -pyrrolidine30 ,60 0 -indolo[2,1-b]quinazoline]-40 carboxylate. 103, India, bOrganic Chemistry Division, CSIR Central Leather Research Institute, Adyar, Chennai 600 020, India, and cDepartment of Physics, Presidency College (Autonomous), Chennai 600 005, India. C29H23ClN4O4, the quinazoline-indole system and the indolin-2-one system are each essentially planar, with maximum deviations from their mean planes of. 0.150 (2) and 0.072 (2) Å, respectively. The central pyrrolidine ring adopts a twisted conformation on the C—C bond involving the spiro C atoms. Its mean plane forms dihedral angles of 83.37 (9) and 86.56 (8) , respectively, with the indole rings of the indolin-2-one and quinazoline-indole systems. Molecules are linked via pairs of N—H O hydrogen bonds, forming inversion dimers. The dimers are linked via C—H O hydrogen bonds, forming chains propagating along [001]
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