Descriptions on the absolute configuration at C-5 of cacalol have been confused. Ozonolysis of cacalol afforded (S)-(+)-2-methylhexanedioic acid. The asymmetric center at C-5 of cacalol, cacalone, and of sesquiterpenes related to these compounds was therefore established to be (S)-configuration.
关于卡卡洛尔 C-5 绝对构型的描述一直很混乱。卡卡洛尔的
臭氧分解得到了(S)-(+)-
2-甲基己二酸。因此,卡卡洛尔、卡卡酮以及与这些化合物相关的
倍半萜类化合物的 C-5 不对称中心被确定为 (S)- 构型。