1974 年 22 巻 6 号 p. 1227-1232
Mass spectra of several disubstituted furanocoumarins, namely phellopterin, byakangelicol, byakangelicin, anhydrobyakangelicin, neobyakangelicol and alloisoimperatorin were elucidated. The mass spectra of these compounds are characteristic respectively, especially on cleavages of their side chains. The results are shown in Fig. 1-6 and Chart 1-6.