Trifluoroacetic acid → (3R,10S)-2-methyl-5-methyl-3-(9-oxo-1,8-diazatricyclo[10.6.1.013,18]nonadeca-12(19),13(18),14,16-tetraen-10-ylcarbamoyl)hexanoic acid
반응식
C([O:5][C:6](=[O:37])[CH:7]([CH3:36])[C@H:8]([C:13](=[O:35])[NH:14][C@H:15]1[CH2:32][C:31]2=[CH:33][N:24]([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][C:30]=32)[CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][NH:17][C:16]1=[O:34])[CH2:9][CH:10]([CH3:12])[CH3:11])(C)(C)C.C(O)(C(F)(F)F)=O>ClCl>[CH3:36][CH:7]([C@H:8]([C:13](=[O:35])[NH:14][C@H:15]1[CH2:32][C:31]2=[CH:33][N:24]([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][C:30]=32)[CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][NH:17][C:16]1=[O:34])[CH2:9][CH:10]([CH3:11])[CH3:12])[C:6]([OH:37])=[O:5]참가 물질
반응물 2
생성물 1
시약·촉매·용매 1
실험 절차
Alternatively, the less polar stereoisomer of (3R,10S)-2-methyl-5-methyl-3-(9-oxo-1,8-diazatricyclo-[10.6.1.013,18 ]nonadeca-12(19),13(18),14,16-tetraen-10-ylcarbamoyl)hexanoic acid t-butyl ester prepared in Example 5D above (15 mg) was taken up in CH2 Cl2 (2.4 mL) and TFA (0.6 mL) and the resulting mixture was stirred at room temperature for 4 hrs. The solvent was removed under reduced pressure at 35° C. Then ethyl acetate was added and the solution was washed with water (3×10 mL). The organic layer was dried over Na2SO4, filtered and evaporated to dryness. Recrystallization from ethyl acetate/petroleum ether gave (3R,10S)-2-methyl-5-methyl-3-(9-oxo-1,8-diazatricyclo[10.6.1.013,18 ]nonadeca-12(19),13(18),14,16-tetraen-10-ylcarbamoyl)hexanoic acid as a white solid (7 mg), MS: 456.3 (M+H)+.
후처리
- customThe solvent was removed under reduced pressure at 35° C
- additionThen ethyl acetate was added
- washthe solution was washed with water (3×10 mL)
- dry with materialThe organic layer was dried over Na2SO4
- filtrationfiltered
- customevaporated to dryness
- customRecrystallization from ethyl acetate/petroleum ether
출처 및 근거
- ORD 기록
- ord-92a6c391d4474233bd754f59fc726e19
- 출처 데이터셋
- uspto-grants-1998_06
- 특허 번호
- US05773428
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