Triethylamine → HCID 178501468, compound

HRID 1908625Notes

Reaction equation

HRID 1908625 reaction equation
[OH:1][C:2]1[N:6]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[N:5]=[C:4]([C:13]([OH:15])=O)[CH:3]=1.Cl.[CH3:17][O:18][C:19](=[O:31])[C@@H:20]([NH2:30])[CH2:21][CH2:22][C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24].C(N(CC)CC)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(Cl)Cl.O>[CH3:17][O:18][C:19](=[O:31])[C@@H:20]([NH:30][C:13]([C:4]1[CH:3]=[C:2]([OH:1])[N:6]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)[N:5]=1)=[O:15])[CH2:21][CH2:22][C:23]([O:25][C:26]([CH3:27])([CH3:28])[CH3:29])=[O:24]

Participants

7

Procedure

To a solution of 8 g of 5-Hydroxy-1-phenyl-1H-pyrazole-3-carboxylic acid and 10 g of (S)-2-Amino-pentanedioic acid 5-tert-butyl ester 1-methyl ester hydrochloride in 300 ml of DCM, 16 g of triethylamine and 15 g of HATU was added and stirred for 16 h at RT. Then, the reaction mixture was diluted with water and extracted with DCM. The organic phase was dried over MgSO4 and the solvents were removed under reduced pressure. The crude product was purified by chromatography on silica gel eluting with a gradient of n-heptane/ethyl acetate. The fractions containing the product were combined and the solvent evaporated under reduced pressure. Yield: 11 g.

Workup

  1. extractionextracted with DCM
  2. dry with materialThe organic phase was dried over MgSO4
  3. customthe solvents were removed under reduced pressure
  4. customThe crude product was purified by chromatography on silica gel eluting with a gradient of n-heptane/ethyl acetate
  5. additionThe fractions containing the product
  6. customthe solvent evaporated under reduced pressure

Sources & evidence

ORD record
ord-fd508d3428f849969432f12f9917ffca
Source dataset
uspto-grants-2013_12
Patent number
US08598179B2

Reaction notes

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