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公开(公告)号:US4182899A
公开(公告)日:1980-01-08
申请号:US931529
申请日:1978-08-07
申请人: Yung B. Chae , Dae W. Kim
发明人: Yung B. Chae , Dae W. Kim
IPC分类号: C07B31/00 , C07B57/00 , C07C67/00 , C07C227/00 , C07C227/18 , C07C227/34 , C07C229/36 , C07C239/00 , C07C271/22 , C07C313/00 , C07C317/18 , C07F9/24 , C07F9/36 , C07F9/46 , C07F9/50 , C07C69/02 , C07C101/06
CPC分类号: C07B57/00
摘要: The present application relates to the optical resolution into optical antipodes of compounds of the formula ##STR1## as well as to salts consisting of an optical isomer of a compound of the above formula and an optical isomer of 2-aminobutanol. The optically active compounds of the above formula are employed as starting materials for the production of semisynthetic antibiotics of the cephalosporin or penicillin type.
摘要翻译: 本申请涉及将式(I)化合物的光学对映体的光学分辨率以及由上式化合物的旋光异构体和2-氨基丁醇的旋光异构体组成的盐。 上述式的光学活性化合物用作生产头孢菌素或青霉素类型的半合成抗生素的起始原料。
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公开(公告)号:US4292431A
公开(公告)日:1981-09-29
申请号:US156806
申请日:1980-06-05
申请人: Choong S. Kim , Kee J. Lee , Hong S. Kim , Yung B. Chae
发明人: Choong S. Kim , Kee J. Lee , Hong S. Kim , Yung B. Chae
IPC分类号: C07D233/54 , C07D233/64
CPC分类号: C07D233/64
摘要: This invention discloses a process for the production of hydroxymethylimidazoles which comprises reacting imidazolecarboxylic acids, their esters or inorganic salts with a formaldehyde agent in the presence of an alkali in an aqueous medium.
摘要翻译: 本发明公开了一种生产羟甲基咪唑的方法,包括使咪唑羧酸,其酯或无机盐与甲醛在碱存在下在水性介质中反应。
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