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Water → tert-butyl (3S)-4-[2-(3-cyano-4-fluorophenyl)-2-oxoethyl]-3-(hydroxymethyl)piperazine-1-carboxylate

HRID 2175801
Notes
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Reaction equation

HRID 2175801 reaction equation
Br[CH2:2][C:3]([C:5]1[CH:6]=[CH:7][C:8]([F:13])=[C:9]([CH:12]=1)[C:10]#[N:11])=[O:4].[C:14]([N:21]1[CH2:26][CH2:25][NH:24][C@H:23]([CH2:27][OH:28])[CH2:22]1)([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15].O>C1COCC1>[C:10]([C:9]1[CH:12]=[C:5]([C:3](=[O:4])[CH2:2][N:24]2[CH2:25][CH2:26][N:21]([C:14]([O:16][C:17]([CH3:18])([CH3:19])[CH3:20])=[O:15])[CH2:22][C@H:23]2[CH2:27][OH:28])[CH:6]=[CH:7][C:8]=1[F:13])#[N:11]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 962WaterHCID 24820294tert-butyl (3S)-3-(hydroxymethyl)piperazine-1-carboxylateHCID 867270445-(2-Bromoacetyl)-2-fluorobenzonitrile

Product 1

HCID 86727043tert-butyl (3S)-4-[2-(3-cyano-4-fluorophenyl)-2-oxoethyl]-3-(hydroxymethyl)piperazine-1-carboxylate

Reagents, catalysts & solvents 1

HCID 8028Tetrahydrofuran
Solvent

Procedure

5-(Bromoacetyl)-2-fluorobenzonitrile (590 mg, 2.44 mmol) and (S)-4-N-BOC-2-hydroxymethyl-piperazine (527 mg, 2.44 mmol) were dissolved in THF (40 mL) at 0° C. then TEA (247 mg, 2.44 mmol) was added. The reaction mixture was stirred at RT for 16 h, then poured into water and extracted with ethyl acetate. The organic layer was dried over Na2SO4, filtered, and evaporated to dryness. The crude product was purified by MPLC through an 80 g Redi-sep column using 0-100% EtOAc/hexane to yield the title compound.

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. customevaporated to dryness
  5. customThe crude product was purified by MPLC through an 80 g Redi-sep column

Sources & evidence

ORD record
ord-6aed6d2d88ae46f489aaef5a5a10576c
Source dataset
uspto-grants-2015_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09062070B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes