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EP0001559A2 Synthesis of 2-keto-1,4-diazacycloalkanes 失效
2-酮-1,4-二氮杂环烷的合成

Synthesis of 2-keto-1,4-diazacycloalkanes
摘要:
Several novel syntheses have been discovered for preparation of 2-keto-1,4- diazacycloalkanes and their derivatives. Trans isomers of polysubstituted quinoxalin-2- ones may now be prepared.
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