发明名称 |
REDUKSJON AV KARBOKSYLESTERE. |
摘要 |
A method for producing a compound of the formula: <CHEM> [wherein R<1> and R<2> each stand for a lower alkyl group; n denotes an integer of 0 to 21; X stands for hydrogen atom or an optionally protected hydroxyl group; and Y stands for an optionally protected hydroxyl group], which comprises by reducing an ester compound of the formula: <CHEM> [wherein R<1>, R<2>, n, X and Y are of the same meaning as defined above, and R<3> stands for a lower alkyl group] with a mixture of sodium borohydride and aluminum chloride, gives the desired compound in a high yield, and is advantageous from the industrial point of view. |
申请公布号 |
NO167655(B) |
申请公布日期 |
1991.08.19 |
申请号 |
NO19880001823 |
申请日期 |
1988.04.26 |
申请人 |
TAKEDA CHEMICAL INDUSTRIES LTD |
发明人 |
OKADA, TAIITI;ABE, YASUAKI |
分类号 |
A61K;C07C;C07C41/01;C07C41/26;C07C43/20;C07C43/23;C07C45/00;C07C45/29;C07C46/02;C07C46/04;C07C46/06;C07C50/28;C07C67/00;C25B3/02 |
主分类号 |
A61K |
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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