The absolute configurations of four hydroxyfatty acids, jalapinolic acid, convolvulinolic acid, ipurolic acid and 3, 11-dihydroxyhexadecanoic acid, obtained by acid hydrolysis of various resin glycosides, have been determined to be 11S, 11S, 3S, 11S, and 3S, 11S, respectively, by Mosher's method. The R-configuration of jalapinolic acid previously defined by Horeau's method was therefore revised to S.
通过酸
水解各种
树脂糖苷,四种羟基
脂肪酸(墨西哥
胡椒酸、旋花酸、伊普罗酸和3,11-二
羟基十六烷酸)的绝对构型分别被确定为11S、11S、3S、11S和3S、11S,通过莫舍尔法测定。因此,先前由霍罗法定义的墨西哥
胡椒酸的R构型被修改为S。