题名 | 61. The application of the Hofmann reaction to the synthesis of heterocyclic compounds. Part II. Synthesis of xanthine from glyoxaline-4 : 5-dicarboxyamide and of 9-methylxanthine from 1-methylglyoxaline-4 : 5-dicarboxyamide |
链接 | http://pubs.rsc.org/en/content/articlelanding/1945/jr/jr9450000232 |
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