RESUMO
In the title compound, C(11)H(13)NO(3), the pyrrolidin-2-one ring is in an envelope conformation with the hydroxyl and 4-methoxy-phenyl substituents mutually cis. The methoxy group is slighty twisted away from the mean plane of the attached benzene ring. The mol-ecules are arranged into screw chains along the c axis. These chains are inter-connected via inter-molecular O-Hâ¯O and N-Hâ¯O hydrogen bonds into sheets parallel to the ac plane. The crystal structure is further stabilized by weak inter-molecular C-Hâ¯O and C-Hâ¯π inter-actions.
RESUMO
In the title compound, C(17)H(23)NO(5), the pyrrolidinone ring is in an envelope conformation. The tert-butyl carbonate and 4-methoxy-phenyl groups are arranged on the same side of the pyrrolidinone ring. The meth-oxy group is coplanar with the attached benzene ring. The mol-ecules are linked into chains along the b axis via C-Hâ¯O hydrogen bonds.
RESUMO
In the structure of the title compound, C(13)H(15)NO(6)·0.5H(2)O, the water O atom lies on a twofold rotation axis. The methoxy-carbonyl-methyl and amino groups are essentially coplanar and the methoxy-carbonyl-methyl group makes a dihedral angle of 79.73â (10)° with the mean plane of the hydroxy-phenyl ring. The amino and methoxy-carbonyl-methyl groups are involved in an intra-molecular N-Hâ¯O hydrogen bond which generates an S(5) ring motif. In the crystal structure, mol-ecules are linked via N-Hâ¯O and O-Hâ¯O hydrogen bonds and weak C-Hâ¯O inter-actions into a two-dimensional network parallel to the (01) plane. The crystal structure is further stabilized by C-Hâ¯π inter-actions.