Diisopropylethylamine → HCID 68281563, compound

HRID 1425948Notes

Reaction equation

HRID 1425948 reaction equation
[C:1]([O:5][C:6]([NH:8][C@H:9]([CH2:13][CH2:14][C:15]1[CH:20]=[CH:19][C:18]([C:21]([F:24])([F:23])[F:22])=[CH:17][CH:16]=1)[C:10]([OH:12])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH2:25][C:26]1[CH:27]=[CH:28][C:29]2[C:33]([CH3:35])([CH3:34])[O:32][B:31]([OH:36])[C:30]=2[CH:37]=1.CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(Cl)Cl>[OH:36][B:31]1[C:30]2[CH:37]=[C:26]([NH:25][C:10](=[O:12])[C@H:9]([NH:8][C:6](=[O:7])[O:5][C:1]([CH3:4])([CH3:2])[CH3:3])[CH2:13][CH2:14][C:15]3[CH:20]=[CH:19][C:18]([C:21]([F:22])([F:24])[F:23])=[CH:17][CH:16]=3)[CH:27]=[CH:28][C:29]=2[C:33]([CH3:35])([CH3:34])[O:32]1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 583731006-amino-3,3-dimethylbenzo[c][1,2]oxaborol-1(3H)-olHCID 67520362HCID 67520362, compound

Product 1

HCID 68281563HCID 68281563, compoundYield 99%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a suspension of (R)-2-(tert-butoxycarbonylamino)-4-(4-(trifluoromethyl)phenyl)butanoic acid (LXXI) (1 g, 2.88 mmol) and 6-amino-3,3-dimethylbenzo[c][1,2]oxaborol-1(3H)-ol (XCVIII) (0.615 g, 2.88 mmol) in dry DCM (10 mL) was added DIPEA (1.47 mL, 8.64 mmol). To this solution was added HATU (1.09 g, 2.88 mmol) and the mixture was stirred at room temperature overnight. The mixture was washed with 2 N aqueous HCl, 1 M aqueous K2CO3, brine, dried over MgSO4 and evaporated under vacuum to give (R)-tert-butyl 1-(1-hydroxy-3,3-dimethyl-1,3-dihydrobenzo[c][1,2]oxaborol-6-ylamino)-1-oxo-4-(4-(trifluoromethyl)phenyl)butan-2-ylcarbamate (1.44 g, 2.84 mmol, 99% yield). ESIMS found for C25H30BF3N2O5 m/z 507.5 (M+H).

Workup

  1. washThe mixture was washed with 2 N aqueous HCl, 1 M aqueous K2CO3, brine
  2. dry with materialdried over MgSO4
  3. customevaporated under vacuum

Sources & evidence

ORD record
ord-6b66727ed9474e1282007d79e940af0e
Source dataset
uspto-grants-2015_01
Patent number
US08933018B2

Reaction notes

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