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公开(公告)号:US2915479A
公开(公告)日:1959-12-01
申请号:US66390257
申请日:1957-06-06
Applicant: HOFFMANN LA ROCHE
Inventor: DEN HOLLANDER CHARLES WILLIAM
IPC: B01J23/89
CPC classification number: B01J23/8953
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2.
公开(公告)号:US3912761A
公开(公告)日:1975-10-14
申请号:US50812874
申请日:1974-09-23
Applicant: HOFFMANN LA ROCHE
Inventor: DEN HOLLANDER CHARLES WILLIAM , LEIMGRUBER WILLY , MOHACSI ERNEST
IPC: C07H7/027 , C07D317/26
CPC classification number: C07H7/027
Abstract: Racemic modifications of optically active amines are treated with (-)-di-O-isopropylidene-2-keto-L-gulonic acid to form diastereomeric salts. The so-formed diastereomeric salts are separated and chemically decomposed to give the desired enantiomers of the amine. The resolving agent, (-)-di-0isopropylidene-2-keto-L-gulonic acid, is recovered by precipitation from aqueous solution.
Abstract translation: 用( - ) - 二-O-异亚丙基-2-酮-L-古洛糖酸处理光学活性胺的外消旋体,形成非对映异构体盐。 将如此形成的非对映异构体盐分离并化学分解,得到所需胺的对映异构体。 通过从水溶液中沉淀来回收拆分剂( - ) - 二-O-异亚丙基-2-酮-L-古洛糖酸。
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公开(公告)号:US3391154A
公开(公告)日:1968-07-02
申请号:US52706966
申请日:1966-02-14
Applicant: HOFFMANN LA ROCHE
Inventor: DEN HOLLANDER CHARLES WILLIAM
IPC: C07D261/08
CPC classification number: C07D261/08
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