“…UV: 205 (4.80), 240 (3.94), 291 (3.91), 313 sh (3.99) (48,49) IR: (CHCU) 1710, 3560 (48, 23); (KBr) 1700 (48) NMR: (CDCls) (48,17) 13C NMR: (CDCls) (41) MS: 367 (M~) (100), 352,338,322,295,266,206,190 (18) X-Rav: (5) SOURCES: Corydalis ledebouriana K. et K. (5) Corydalis sibirica (L.) Pers. (48) C20H19O6N: 369.1212 MP: 204°( EtOH) (50) [ ] : N.A.…”