“…Other known alkaloids were identified, including kopsinine methochloride ( 8 ), N a -demethoxycarbonyl-12-methoxykopsine ( 9 ), demethoxycarbonylkopsin ( 10 ), methyl demethoxycarbonylchanofruticosinate ( 11 ), methyl chanofruticosinate ( 12 ), methyl 11,12-methylenedioxychanofruticosinate ( 13 ), methyl 12-methoxychanofruticosinate ( 14 ), methyl 11,12-methylenedioxy- N 1 -decarbomethoxychanofruticosinate ( 15 ), kopsininic acid ( 16 ), (−)-11,12-methylenedioxykopsinaline ( 17 ), kopsinine ( 18 ), (−)- N -methoxycarbonyl-11,12-methylenedioxykopsinaline ( 19 ), 5-oxokopsinic acid ( 20 ), kopsinilam ( 21 ), (−)- N -methoxycarbonyl-12-methoxykopsinaline ( 22 ), N -carbomethoxy-11-hydroxy-12-methoxykopsinaline ( 23 ), kopsinoline ( 24 ), (−)-12-methoxykopsinaline ( 25 ), 11,12-methylenedioxykopsinaline N (4)-oxide ( 26 ), kopsinine B ( 27 ), 5,22-dioxokopsane ( 28 ), rhazinilam ( 29 ), and pleiocarpamine methochloride ( 30 ) . The isolated compounds from K. officinalis were screened for their immunosuppressive activity on human T cell proliferation.…”