A conjugated polyprenylcarboxylic acid and its derivative having the formula: ##STR1## in which each of n and m is 0, 1 or 2, n+m is 1 or 2, A is ##STR2## and R is the hydroxyl group, a lower alkoxy group or ##STR3## wherein each of R.sub.1 and R.sub.2 represents the hydrogen atom, a lower alkyl group, or an aryl group; provided that R is ##STR4## if A is ##STR5## n is 1 and m is 0.
一种共轭多预醇
羧酸及其衍
生物,其
化学式为:##STR1## 其中n和m分别为0、1或2,n+m为1或2,A为##STR2##,R为羟基、低级烷氧基或##STR3##,其中R.sub.1和R.sub.2分别表示氢原子、低级烷基或芳基;但是如果A是##STR5##,n为1且m为0,则R为##STR4##。