New analogues of cryptopleurine with different aromatic methoxyl and chloro substituents have been synthesized. Intermediate isomeric 1-hydroxyphenanthro[9.10b]quinolizidines have been isolated and characterized. Yields in the Pschorr reaction have been improved by the novel use of sulphite ion. Some of the compounds have been found to have antifungal activity.
已经合成了具有不同的芳族甲氧基和氯取代基的隐叶嘌呤的新类似物。中间异构体1-羟基菲[9.10 b ]喹啉z已被分离和表征。通过新使用亚硫酸根离子可以提高Pschorr反应的收率。已经发现一些化合物具有抗真菌活性。
Tylophorinine, the minor alkaloid of Tylophoraasthmatica, has been oxidized to yield 2,3,6-trimethoxyphenanthrene-9,10-dicarboxylic acid. A synthesis of the corresponding imide has been achieved. Desoxytylophorinine, obtained by hydrogenolysis of the alkaloid, has been synthesized. These results in conjunction with other degradation experiments have enabled the assignment of the structure XIV to tylophorinine