Methylanhydroitaconitin (III) which was prepared from anhydroitaconitin by treatment with the methylating agent followed by hydrolysis gave 2-methoxy-4-methylbenzaldehyde on ozonolysis. While the ozonolysis of the compound, C14H18O5, which was obtained by alkaline hydrogenation of anhydroitaconitin yielded cisoid-dihydrohaematinic acid (XI). From these and other experimental results the structure of the compound, C14H18O5 was established as XII.
甲基脱
水乌头原素(III)是由脱
水乌头原素经甲基化剂处理后
水解制得的,
臭氧分解后得到
2-甲氧基-4-甲基苯甲醛。而通过碱性氢化无氢乌头原素得到的化合物
C14H18O5 的
臭氧分解得到了顺式二氢哈马
丁酸 (XI)。根据这些和其他实验结果,确定了 化合物的结构为 XII。