发明名称 |
Process for producing vitamin A derivatives |
摘要 |
The present specification relates to an industrially advantageous process for producing vitamin A derivatives which are useful as medicaments, feed additives, food additives and the like. The process provides vitamin A derivatives, particularly all-trans vitamin A derivatives in high yield and purity.
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申请公布号 |
US5424478(A) |
申请公布日期 |
1995.06.13 |
申请号 |
US19940215813 |
申请日期 |
1994.03.22 |
申请人 |
TAKEDA CHEMICAL INDUSTRIES, LTD. |
发明人 |
TANAKA, MITSUTAKA;HANAOKA, TADASHI;TAKANOHASHI, KUNIO |
分类号 |
C07C69/07;C07C403/12;(IPC1-7):C07C69/07 |
主分类号 |
C07C69/07 |
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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