4-Methylmorpholine → (R/S)-tert-butyl 2-(2-hydroxy-2-(4-(5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)acetate

HRID 77178

反応式

HRID 77178 の反応式
[OH:1][CH:2]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]=[C:15]([C:17]3[CH:18]=[N:19][N:20]([C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)[C:21]=3[C:22]([F:25])([F:24])[F:23])[O:14][N:13]=2)=[CH:8][CH:7]=1)[C:3]([OH:5])=O.[NH2:32][CH2:33][C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CN1CCOCC1>CN(C=O)C>[OH:1][CH:2]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:16]=[C:15]([C:17]3[CH:18]=[N:19][N:20]([C:26]4[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=4)[C:21]=3[C:22]([F:25])([F:24])[F:23])[O:14][N:13]=2)=[CH:8][CH:7]=1)[C:3]([NH:32][CH2:33][C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])=[O:5]

参加物

6

反応物 4

HCID 79724-MethylmorpholineHCID 151417Glycine tert-butyl esterHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 67460691(R/S)-2-hydroxy-2-(4-(5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetic acid

生成物 1

HCID 53495667(R/S)-tert-butyl 2-(2-hydroxy-2-(4-(5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)acetate収率 37.9%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

(R/S)-2-Hydroxy-2-(4-(5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetic acid (Int-VII, 40 mg, 0.093 mmol), tert-butyl 2-aminoacetate (18.29 mg, 0.139 mmol), HATU (45.9 mg, 0.121 mmol), and 4-methylmorpholine (37.6 mg, 0.372 mmol) were added to DMF (1 mL). It was stirred for 20 min and then was purified by prep HPLC (PHENOMENEX® Luna 5u 21.2×100 mm, gradient elution with Method 1—MeOH/water containing 0.1% trifluoroacetic acid as defined above, 0% B to 100% B over 15 min, 20 mL/min, 220 nM, product retention=16.4 min) to provide (R/S)-tert-butyl 2-(2-hydroxy-2-(4-(5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamido)acetate (20 mg, 0.035 mmol, 37.9% yield): LCMS=488.1 [M+H−C4H9]+; 1H NMR (400 MHz, methanol-d4) δ ppm 8.46 (1 H, s), 8.12 (2 H, d, J=8.35 Hz), 7.50-7.75 (7 H, m), 5.17 (1 H, s), 3.90 (2 H, s), 1.44 (9 H, s); HPLC peak RT=9.1 min (Method A).

後処理

  1. customwas purified by prep HPLC (PHENOMENEX® Luna 5u 21.2×100 mm, gradient elution with Method 1—MeOH/water containing 0.1% trifluoroacetic acid as defined above, 0% B to 100% B over 15 min, 20 mL/min, 220 nM, product retention=16.4 min)

出典と根拠

ORDレコード
ord-1fac4d83efa445858d4c28aea2e37d91
出典データセット
uspto-grants-2014_09
特許番号
US08835470B2

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