Trifluoroacetic acid → (2S)-2-{[(Z)-1-methyl-3-(4-methylphenyl)-3-oxo-1-propenyl]amino}-3-{4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl}propanoic acid

반응식

[NH2:1][C@@H:2]([CH2:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:14][CH2:15][C:16]2[N:17]=[C:18]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[O:19][C:20]=2[CH3:21])=[CH:9][CH:8]=1)[C:3]([OH:5])=[O:4].C(O)(C(F)(F)F)=O.[CH3:35][C:36]1[CH:41]=[CH:40][C:39]([C:42](=[O:47])[CH2:43][C:44](=O)[CH3:45])=[CH:38][CH:37]=1>>[CH3:45]/[C:44](/[NH:1][C@@H:2]([CH2:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:14][CH2:15][C:16]2[N:17]=[C:18]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[O:19][C:20]=2[CH3:21])=[CH:9][CH:8]=1)[C:3]([OH:5])=[O:4])=[CH:43]/[C:42]([C:39]1[CH:38]=[CH:37][C:36]([CH3:35])=[CH:41][CH:40]=1)=[O:47]

참가 물질

반응물 3

HCID 6422Trifluoroacetic acid

HCID 4326511-(4-Methylphenyl)butane-1,3-dione

HCID 18343040(2S)-2-amino-3-{4-[2-(5-methyl-2-phenyl-1,3oxazol-4-yl)ethoxy]phenyl}propanoic acid

생성물 1

HCID 9828201(2S)-2-{[(Z)-1-methyl-3-(4-methylphenyl)-3-oxo-1-propenyl]amino}-3-{4-[2-(5-methyl-2-phenyl-1,3-oxazol-4-yl)ethoxy]phenyl}propanoic acid

실험 절차

The title compound was prepared (as described above for the preparation of Example 2) from 790 mg (1.64 mmol) of Intermediate 45 (as the TFA salt) and 0.29 g (1.64 mmol) of Intermediate 27 (with 660 μL of DCA replacing Et3N) to yield crude product contaminated with DCA). A second silica gel chromatography column eluting with 8:1 DCM:MeOH gave 70 mg of Example 19 as a beige-colored solid: TLC (DCM/MeOH (4:1): Rf=0.58; 1H NMR (DMSO-d6, 400 MHz) δ11.43 (d, 1H, J=9.0), 7.96 (m, 2H), 7.74 (d, 2H, J=8.1), 7.54 (m, 3H), 7.24 (d, 2H, J=8.1), 7.18 (d, 2H, J=8.4), 6.87 (d, 2H, J=8.4), 5.57 (s, 1H), 4.21 (t, 2H, J=6.6), 4.08 (m, 1H), 3.23 (m, 2H), 2.95 (t, 2H, J=6.6), 2.80(dd, 1H, J=13.8, 9.0), 2.39 (s, 3H), 2.37 (s, 3H), 1.71 (s, 3H); low resolution MS (ES+)m/e 525.2 (MH+).