Oxaprozin → Butanedioic acid;bis(2-hydroxy-1,2-diphenylethanone)
반응식
C1(C2N=[C:9]([CH2:18][CH2:19][C:20]([OH:22])=[O:21])[O:10]C=2C2C=CC=CC=2)C=CC=CC=1.[C:23]1([C:29]([CH:31]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[OH:32])=[O:30])[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.C1(=O)OC(=O)CC1>>[C:20]([OH:22])(=[O:21])[CH2:19][CH2:18][C:9]([OH:30])=[O:10].[C:23]1([C:29]([CH:31]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[OH:32])=[O:30])[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1.[C:23]1([C:29]([CH:31]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[OH:32])=[O:30])[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1참가 물질
4
실험 절차
A process for the preparation of 4,5-diphenyloxazole-2-propanoic acid of formula I ##STR2## by esterification of benzoin with succinic anhydride to give benzoin hemisuccinate, and cyclization to (I) by direct addition of ammonium acetate or urea to the mixture containing the hemisuccinate,
출처 및 근거
- ORD 기록
- ord-cf112545ea7f4486bef9bbf657337f54
- 출처 데이터셋
- uspto-grants-2000_08