An unusual acid: (+/-)-3-benzoyl-1,2-dimethyl-8a-phenyl-2-benzothieno[2,3-b]pyrrole-1,2-dicarboxylic anhydride.
The title compound, C27H21NO4S, is a 2-benzothieno[2,3-b]pyrrole derivative with several substituents, present in the crystal as a racemate. The tetracyclic fused-ring system shows a 'U-shaped' molecular architecture, since the two rings flanking the central pyrrolidine ring both point in the same direction.
Bruno
Giuseppe
G
Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Universitá degli Studi di Messina, Via Salita Sperone 31, 98166 Vill. S. Agata-Messina, Italy. gbruno@unime.it
Nicoló
Francesco
F
Rotondo
Archimede
A
Cordaro
Massimiliano
M
Risitano
Francesco
F
Grassi
Giovanni
G