摘要 : The crystal structures of methyl and ethyl N-(2,3-dimethoxybenzyl)-N-(p-toluenesulfonyl)-2-phenyl-glycinates 4a and 4b respectively, have been determined by X-ray diffraction analysis. The presence of different alkyl ester groups ... 展开 The crystal structures of methyl and ethyl N-(2,3-dimethoxybenzyl)-N-(p-toluenesulfonyl)-2-phenyl-glycinates 4a and 4b respectively, have been determined by X-ray diffraction analysis. The presence of different alkyl ester groups in both molecules does not affect the geometry retaining a svnclinal conformation for the N atom and the O atom of the C=O group [N-C17-C18-O5 38.1(5)degrees for 4a and 33.3(4)degrees for 4b]. [References: 14] 收起