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21.New alpha-amino-beta-hydroxycarboxylic acid amides and a process of preparing them 失效
Title translation: 新的α-氨基-β-羟基羧酸酰胺及其制备方法公开(公告)号:US2851494A
公开(公告)日:1958-09-09
申请号:US56819756
申请日:1956-02-28
Applicant: HOECHST AG
Inventor: GUSTAV EHRHART , HEINRICH OTT , ERNST LINDNER
IPC: C07C237/00
CPC classification number: C07C237/00
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22.beta-hydroxybutyric acid para-phenetidide and a process for preparing it 失效
Title translation: β-羟基丁酸对苯二甲酸及其制备方法公开(公告)号:US2830087A
公开(公告)日:1958-04-08
申请号:US56258356
申请日:1956-01-31
Applicant: HOECHST AG
Inventor: GUSTAV EHRHART , HEINRICH OTT
IPC: C07C233/16
CPC classification number: C07C233/16
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公开(公告)号:US2816895A
公开(公告)日:1957-12-17
申请号:US47225954
申请日:1954-11-30
Applicant: HOECHST AG
Inventor: GUSTAV EHRHART , HEINRICH OTT
IPC: C07D211/46
CPC classification number: C07D211/46
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