发明名称 |
Method for preparing salts of 6-chloropurine |
摘要 |
There is described a novel method for preparing and isolating novel salts of 6-chloropurine and strong acids. According to the method hypoxanthine is reacted with phosphorus oxychloride in the presence of an organic base to form 6-chloropurine, a solvent is added to the reaction mixture and the latter is reacted with a strong acid to form a 6-chloropurine salt which is then isolated. In a preferred embodiment 6-chloropurine is freed from the salt with water, preferably in the presence of a base. In another preferred embodiment the 6-chloropurine is aminated with various amines.
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申请公布号 |
US4405781(A) |
申请公布日期 |
1983.09.20 |
申请号 |
US19810238055 |
申请日期 |
1981.03.02 |
申请人 |
POLAROID CORPORATION |
发明人 |
BADER, HENRY;CHIANG, YUNN H. |
分类号 |
C07D473/40;(IPC1-7):C07D473/40 |
主分类号 |
C07D473/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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