Antimicrobial activity is exhibited by compounds having the formula ##STR1## wherein R.sub.1 is hydrogen or aryl; R.sub.2 is hydroxymethyl, carboxyaldehyde, propenalyl, 3-hydroxy-1-propenyl, or 3-hydroxy-1,2-epoxypropyl; and n is 2 and m is 1 or n is 3 and m is 0; with the proviso that if R.sub.1 is hydrogen, n is 2 and m is 1.
具有公式 ##STR1## 的化合物表现出抗微
生物活性,其中R.sub.1是氢或芳基;R.sub.2是羟甲基,羧醛,
丙烯基,3-羟基-
1-丙烯基或3-羟基-1,2-环氧丙基;n为2且m为1或n为3且m为0;条件是如果R.sub.1是氢,则n为2且m为1。