Triterpenoids from the Dai Medicinal Plant Winchia calophylla

A new compound (1) named as winchic acid and eight known ones were isolated from the stem barks of Winchia colophylla A. DC. (collected in Xishuangbanna, Yunnan Province of China). The new compound 1 was identified as 3beta-hydroxy-27-(4-hydroxy-3-methoxy-E-cinnamoyloxy)-lup-20(29)-en-28-oic acid on the basis of 1D and 2D NMR experiments. The eight known compounds were determined to be lupenone, lupenyl acetate, betulinic acid, alpha-amyrin acetate, ursolic acid, ptiloepoxide, beta-amyrin and cycloeucalenol, respectively.

小小的苔

小时候,我家的后墙紧贴着一面山岩。推开后窗,迎面就是铁红色的岩石。岩石上面有一道平缓的石坎,上面长着高高的球状的夹竹桃树、低低的杂生的野草以及矮矮的地毯一样的苔。

小小的苔

小时候我家的后墙,紧贴着一面山岩。推开后窗,迎面就是铁红色的岩石。岩石上面有一道平缓的石坎,上面长着高高的球状的夹竹桃树、低低的杂生的野草以及矮矮的地毯一样的苔。

美丽的围墙

多年以前,四奶奶家有个很大的院子,围墙很高,挨着墙栽有上百株夹竹桃树。夹竹桃开花了,粉红粉红的,开过墙头,向人们一次次招摇着美丽的姿色。行人路过墙外,总会情不自禁地停下匆忙的脚步。

遥望祖母

引子她说她叫单,简单的单孤单的单。可她又说,像她这样的纯情女子,其实该叫那个牡丹丹青侠骨丹心的丹的。