Synthesis and Crystal Structure of Methyl 9-(4-Methoxypheny1)-8a,9,9a,10,11,12,13,14a-octa hydro-8H-benzo[fichromeno[3,4-b]indolizine-8a-carboxylate

The crystal structure of methyl 9-(4-methoxyphenyl)- 8a,9,9a,10,11,12,13,14a-octa hydro-8H-benzo[f]chromeno[3,4-b]indolizine-8a-carboxylate has been determined by means of X-Ray diffraction. The compound crystallizes in the monocolinic space group P2(1)/c with a = 11.288(11) angstrom, b = 23.760(2)angstrom, c = 9.202(8) angstrom and beta = 112.292(3)degrees. The pyrrolidine right adopts an envelope conformation and the piperidine ring exhibits a chair conformation. the mean plate of the naphthalene ring system makes a dihedral angle of 55.90 (6)degrees with the methyl benzene ring. The naphthalene ring and tetrahydro pyran ring is almost planar and the dihedral angle between these rings is 9.43 (5)degrees. The molecular structure of compound is stabilized by weak intramolecular C-H center dot center dot center dot N interaction and the crystal packing of the compound is controlled by weak intermolecular C-H center dot center dot center dot O and C-H center dot center dot center dot pi interactions.