4-Methylmorpholine → (R/S)-2-hydroxy-N-(3-hydroxypropyl)-2-(4-(5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamide

HRID 77176Notes

Reaction equation

HRID 77176 reaction equation
[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](O)=[O:4].[NH2:32][CH2:33][CH2:34][CH2:35][OH:36].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:23])([F:24])[F:25])[O:14][N:13]=2)=[CH:8][CH:7]=1)[C:3]([NH:32][CH2:33][CH2:34][CH2:35][OH:36])=[O:4]

Participants

6

Reactant 4

HCID 79724-MethylmorpholineHCID 90863-Amino-1-propanolHCID 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

Product 1

HCID 53495538(R/S)-2-hydroxy-N-(3-hydroxypropyl)-2-(4-(5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamideYield 34.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

(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), 3-aminopropan-1-ol (10.47 mg, 0.139 mmol), HATU (45.9 mg, 0.121 mmol), and 4-methylmorpholine (37.6 mg, 0.372 mmol) were dissolved in 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 10 min, 20 mL/min, 220 nM, product retention=11.1 min) to provide (R/S)-2-hydroxy-N-(3-hydroxypropyl)-2-(4-(5-(1-phenyl-5-(trifluoromethyl)-1H-pyrazol-4-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamide (20 mg, 0.032 mmol, 34.4% yield): LCMS=488.2 [M+H]+; 1H NMR (400 MHz, methanol-d4) δ ppm 8.42-8.50 (1 H, m), 8.12 (2 H, dd, J=8.57, 3.30 Hz), 7.51-7.73 (7 H, m), 5.11 (1 H, s), 3.58 (2 H, t, J=6.15 Hz), 3.35 (2 H, t, J=6.81 Hz), 1.74 (2 H, quin, J=6.59 Hz); HPLC peak RT=6.8 min (Method A).

Workup

  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 10 min, 20 mL/min, 220 nM, product retention=11.1 min)

Sources & evidence

ORD record
ord-5002eae769594710861e828e73f0d5b0
Source dataset
uspto-grants-2014_09
Patent number
US08835470B2

Reaction notes

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