4-Methylmorpholine → Tert-butyl 3-(2-hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)propanoate

HRID 77128

반응식

HRID 77128 반응식
[OH:1][CH:2]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]=[C:15]([C:17]3[O:21][N:20]=[C:19]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)[C:18]=3[C:28]([F:31])([F:30])[F:29])[O:14][N:13]=2)=[CH:8][CH:7]=1)[C:3](O)=[O:4].CN1CCOCC1.Cl.[NH2:40][CH2:41][CH2:42][C:43]([O:45][C:46]([CH3:49])([CH3:48])[CH3:47])=[O:44].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C.[Cl-].[Na+].O.CCOC(C)=O>[OH:1][CH:2]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]=[C:15]([C:17]3[O:21][N:20]=[C:19]([C:22]4[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=4)[C:18]=3[C:28]([F:29])([F:30])[F:31])[O:14][N:13]=2)=[CH:8][CH:7]=1)[C:3]([NH:40][CH2:41][CH2:42][C:43]([O:45][C:46]([CH3:49])([CH3:48])[CH3:47])=[O:44])=[O:4]

참가 물질

8

반응물 4

HCID 79724-MethylmorpholineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 16218890Tert-butyl 3-aminopropanoate hydrochlorideHCID 674589572-Hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetic acid

생성물 1

HCID 67459034Tert-butyl 3-(2-hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)propanoate수율 94%

시약·촉매·용매 3

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매HCID 57417360Sodium chloride; water용매

실험 절차

2-Hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetic acid (Int-Va, 70 mg, 0.162 mmol) was dissolved in DMF (2 mL) prior to the addition of 4-methylmorpholine (0.107 mL, 0.974 mmol), tert-butyl 3-aminopropanoate-HCl (53.1 mg, 0.292 mmol), and HATU (111 mg, 0.292 mmol). This was stirred overnight before EtOAc and brine were added. The organic layer was washed with brine, 1N HCl, and saturated NaHCO3. The organic layer was then dried (MgSO4), filtered, and concentrated to give tert-butyl 3-(2-hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)propanoate (85 mg, 0.152 mmol, 94% yield): LCMS=559.3 [M+H]+, which was taken to the next step. This material, tert-butyl 3-(2-hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)propanoate (160 mg, 0.286 mmol), was dissolved in CH2Cl2 (1 mL) and TFA (2.0 mL). This was stirred for 1 h and was then concentrated to give single enantiomer 3-(2-hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)propanoic acid (147 mg, 0.293 mmol): LCMS=503.0 [M+H]+; 1H NMR (400 MHz, methanol-d4) δ ppm 8.17 (2 H, d, J=8.35 Hz), 7.69 (4 H, d, J=7.91 Hz), 7.52-7.65 (3 H, m), 5.11 (1 H, s), 3.50 (2 H, t, J=6.59 Hz), 2.54 (2 H, t, J=6.81 Hz).

후처리

  1. additionwere added
  2. washThe organic layer was washed with brine, 1N HCl, and saturated NaHCO3
  3. dry with materialThe organic layer was then dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated

출처 및 근거

ORD 기록
ord-d63fda9799cb4c1e87e39102ca601fd5
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08835470B2

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