Urzúa Alejandro, Torres René, Mendoza Leonora, Delle Monache Franco
Planta Med. 2003 Jul;69(7):675-7. doi: 10.1055/s-2003-41118.
A biologically monitored fractionation of the resinous exudate extract of Haplopappus foliosus DC. is reported. Purification of the two active fractions yielded 2-alpha-hydroxy- cis-cleroda-3,13(Z),8(17)-trien-15-oic acid (1) and 2-alpha-acetoxy- cis-cleroda-3,13(Z),8(17)-trien-15-oic acid (2), two new clerodane diterpenes.
据报道,对单叶哈氏菊(Haplopappus foliosus DC.)树脂状渗出物提取物进行了生物监测分级分离。两种活性馏分的纯化得到了2-α-羟基-顺式-克罗烷-3,13(Z),8(17)-三烯-15-酸(1)和2-α-乙酰氧基-顺式-克罗烷-3,13(Z),8(17)-三烯-15-酸(2),两种新的克罗烷二萜。