Author's Organization:Pharmaceutical Institute, Medical School, University of Hokkaido Pharmaceutical Institute, Medical School, University of Hokkaido Pharmaceutical Institute, Medical School, University of Hokkaido
The Ultraviolet and infrared absorption spectra of 3, 4-dihydroisoquinoline and its homologs are described which have been very useful in the interpretation of the absorptions of 2'-acyl-5, 11b-dehydroemetines.