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发明名称
Improvements in and relating to the preparation of purine derivatives
摘要
申请公布号
GB767216(A)
申请公布日期
1957.01.30
申请号
GB19540015692
申请日期
1954.05.27
申请人
BURROUGHS WELLCOME & CO. (U.S.A.) INC.
发明人
分类号
C07D473/40
主分类号
C07D473/40
代理机构
代理人
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