Abstract
The title compound, C31H26N4O2S, crystallizes in a triclinic centrosymmetric lattice with two molecules in the unit cell. The five-membered thiazole and pyrrolidine rings adopt twisted and envelope conformations, respectively. The methoxyphenyl and indenoquinoxaline planes are oriented with a dihedral angle of 88.1 (1)° to each other. The crystal structure features C—H...N, C—H...O and C—H...S intermolecular interactions forming two R 2 2(16) ring motifs and a C(11) and two C 2 2(14) chain motifs. The –CH3 group of the ethyl side chain is disordered over two positions with site occupancies of 0.55 and 0.45.
Highlights
The title compound, C31H26N4O2S, crystallizes in a triclinic centrosymmetric lattice with two molecules in the unit cell
The methoxyphenyl and indenoquinoxaline planes are oriented with a dihedral angle of 88.1 (1) to each other
The –CH3 group of the ethyl side chain is disordered over two positions with site occupancies of 0.55 and 0.45
Summary
The fusion of more heterocyclic rings, such as thiazoles, pyrrolidines and quinoxalines, in a single compound is being investigated by many researchers around the world due to the versatile applications of such compounds in the biological and pharmaceutical industries (He et al, 2003; Swarnkar et al, 2007; Verma & Saraf, 2008; Muralikrishnan et al, 2013). When such a fused heterocyclic compound has attached donor and acceptor groups, it leads to intermolecular interactions which are normally weak hydrogen bonds.
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