Ethyl bromoacetate → HCID 86664824, compound

HRID 1628243Notes

Reaction equation

[NH2:1][C@@H:2]([CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[C:3]([NH:5][C:6]1[N:10]([CH3:11])[N:9]=[C:8]([C:12]2[CH:17]=[CH:16][N:15]=[C:14]([Cl:18])[CH:13]=2)[CH:7]=1)=[O:4].CCN(C(C)C)C(C)C.Br[CH2:36][C:37]([O:39][CH2:40][CH3:41])=[O:38]>CN(C=O)C>[Cl:18][C:14]1[CH:13]=[C:12]([C:8]2[CH:7]=[C:6]([NH:5][C:3](=[O:4])[C@@H:2]([NH:1][CH2:36][C:37]([O:39][CH2:40][CH3:41])=[O:38])[CH2:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)[N:10]([CH3:11])[N:9]=2)[CH:17]=[CH:16][N:15]=1

Participants

Conditions

Temperature: 0 °C

Procedure

To a 1000 ml flask was added 8.6 g of (2S)-2-amino-N-(3-(2-chloropyridin-4-yl)-1-methyl-1H-pyrazol-5-yl)-3-phenylpropanamide 1.E, 100 ml of DMF, 6.0 ml of DIEA and the reaction was cooled to 0° C. To the reaction was then added 2.8 ml of ethyl bromoacetate and the reaction was stirred at 22° C. for 16 hours at which time the crude was partitioned between 1500 ml EtAc, 2×400 ml of saturated brine, and 2×400 ml of water (Note: no product observed in aqueous layer). The organic solvent was removed by rotary evaporation and the crude purified with a silica gel column (eluting with 30% EtAc in Hexane) to give 6.3 g of ethyl 2-((S)-1-(3-(2-chloropyridin-4-yl)-1-methyl-1H-pyrazol-5-ylamino)-1-oxo-3-phenylpropan-2-ylamino)acetate 17.7.F as a white solid.

Workup

customwas partitioned between 1500 ml EtAc, 2×400 ml of saturated brine, and 2×400 ml of water (Note
customThe organic solvent was removed by rotary evaporation
customthe crude purified with a silica gel column (eluting with 30% EtAc in Hexane)

Sources & evidence

ORD record: ord-87e4d73dcbe04083acf932b8048740cc
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08785468B2

Reaction notes

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