4-(9-Anthr-yl)-1-(2-methoxy-phen-yl)spiro-[azetidin-3,9'-xanthen]-2-one.

ABSTRACT: The stabilized conformation of the title compound, C(36)H(25)NO(3), 4-(9-anthryl)-1-(2-methoxyphenyl)-spiro[azetid-in-3,9'-xanthen]-2-one, may be compared with that of the isomeric compound 4-(9-anthr-yl)-1-(4-methoxy-phen-yl)spiro-[azetidin-3,9'-xanthen]-2-one. In the title isomer, the meth-oxy group is slightly twisted out of the plane of the attached benzene ring, with a C-O-C-C torsion angle of 31.5?(2)°. Its ?-lactam ring is essentially planar, with a maximum deviation of -0.021?(1)?Å. The ?-lactam ring makes dihedral angles of 18.815?(9), 83.33?(7) and 53.62?(8)° with the mean planes of the benzene, xanthene and anthracene ring systems, respectively. The structure is stabilized by C-H??, C-H?N and C-H?O inter-actions.

SUBMITTER: Yalc?n SP 

PROVIDER: S-EPMC2968572 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature