title: 3-Ethyl 2-methyl 8-bromo-2-phenyl-1,2,3,3a,4,9b-hexa-hydro-chromeno[4,3-b]pyrrole-2,3-dicarboxyl-ate.
abstract: The title compound, C(22)H(22)BrNO(5), was synthesized by the intra-molecular cyclo-addition reaction of (E)-ethyl 4-(4-bromo-2-formyl-phen-oxy)but-2-enoate and methyl 2-amino-2-phenyl-acetate. The pyrrolidine and 3,4-dihydro-2H-pyran rings exhibit envelope conformations. The two benzene rings are twisted to each other at a dihedral angle of 59.36 (18)°. The eth-oxy group of the ester unit is disordered over two sites with an occupancy ratio of 0.503 (11):0.497 (11). Weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure.
authors: College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637002, People's Republic of China.
authors: Long
authors: L
authors: He
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