4-Methylmorpholine → HCID 53472866, compound

HRID 77168Notes

Reaction equation

HRID 77168 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[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].[NH2:32][C@@H:33]([CH3:36])[C:34]#[N:35].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CN1CCOCC1>CN(C=O)C>[C:34]([C@@H:33]([NH:32][C:3](=[O:4])[CH:2]([OH:1])[C:6]1[CH:7]=[CH:8][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:30])([F:31])[F:29])[O:14][N:13]=2)=[CH:10][CH:11]=1)[CH3:36])#[N:35]

Participants

6

Reactant 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 12782878HCID 12782878, compoundHCID 674589572-Hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetic acid

Product 1

HCID 53472866HCID 53472866, compoundYield 32.8%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

2-Hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetic acid (Int-Vb, 25 mg, 0.058 mmol), (S)-2-aminopropanenitrile (Int-X, 6.09 mg, 0.087 mmol), HATU (28.7 mg, 0.075 mmol), and 4-methylmorpholine (23.45 mg, 0.232 mmol) were dissolved in DMF (1 mL). The reaction mixture was stirred for 1 h, and then purified by prep HPLC (PHENOMENEX® Luna 5u 21.2×250 mm gradient elution with Method 2—CH3CN/water containing 0.1% trifluoroacetic acid as defined above, 0% B to 100% B over 30 min, 20 mL/min, 220 nM, product retention=25.5 min) to provide single enantiomer N—((S)-1-cyanoethyl)-2-hydroxy-2-(4-(5-(3-phenyl-4-(trifluoromethyl)isoxazol-5-yl)-1,2,4-oxadiazol-3-yl)phenyl)acetamide (10 mg, 0.019 mmol, 32.1% yield): LCMS=484.0 [M+H]+; 1H NMR (400 MHz, methanol-d4) δ ppm 8.12-8.26 (2 H, m), 7.50-7.78 (7 H, m), 5.17 (1 H, s), 4.85-4.94 (1 H, m), 1.56 (3 H, d, J=7.26 Hz); HPLC peak RT=9.9 min (Method A).

Workup

  1. custompurified by prep HPLC (PHENOMENEX® Luna 5u 21.2×250 mm gradient elution with Method 2—CH3CN/water containing 0.1% trifluoroacetic acid as defined above, 0% B to 100% B over 30 min, 20 mL/min, 220 nM, product retention=25.5 min)

Sources & evidence

ORD record
ord-4fc6543969274fe28170666b982acbb6
Source dataset
uspto-grants-2014_09
Patent number
US08835470B2

Reaction notes

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