Sodium Carbonate → HCID 68425473, 화합물

HRID 70909노트

반응식

HRID 70909 반응식
Br[C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C@@H:9]([NH:13][C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[C:10]([OH:12])=[O:11])=[CH:4][CH:3]=1.[Cl:21][C:22]1[CH:23]=[C:24](B(O)O)[CH:25]=[CH:26][CH:27]=1.C([O-])([O-])=O.[Na+].[Na+]>COCCOC.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:17]([O:16][C:14]([NH:13][C@H:9]([CH2:8][C:5]1[CH:6]=[CH:7][C:2]([C:26]2[CH:25]=[CH:24][CH:23]=[C:22]([Cl:21])[CH:27]=2)=[CH:3][CH:4]=1)[C:10]([OH:12])=[O:11])=[O:15])([CH3:20])([CH3:19])[CH3:18]

참가 물질

7

반응물 3

HCID 10340Sodium CarbonateHCID 2734323(3-Chlorophenyl)boronic acidHCID 7020327(2R)-3-(4-bromophenyl)-2-{[(tert-butoxy)carbonyl]amino}propanoic acid

생성물 1

HCID 68425473HCID 68425473, 화합물

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 80711,2-Dimethoxyethane용매HCID 8857Ethyl Acetate용매

실험 절차

(R)-3-(4-Bromo-phenyl)-2-tert-butoxycarbonylamino-propionic acid (4.0 g, 11.6 mmol), 3-chlorophenylboronic acid (2.36 g, 15.11 mmol), Pd(PPh3)4 (0.067 g, 0.058 mmol) and 2M Na2CO3 aqueous solution (8.0 mL) are refluxed in 1,2-dimethoxyethane (70 mL) for 2.5 h under N2 atmosphere. After cooling to room temperature, the reaction mixture is diluted with EtOAc and washed with 1M HCl and brine. The organic layer is dried over Na2SO4 and concentrated. The residue is purified by flash column chromatography (silica gel, DCM/10% MeOH in DCM=100:0 to 0:100). to give (R)-2-tert-butoxycarbonylamino-3-(3′-chloro-biphenyl-4-yl)-propionic acid (containing impurities). HPLC retention time=1.56 minutes (condition A): MS (m+1)=376.

후처리

  1. washwashed with 1M HCl and brine
  2. dry with materialThe organic layer is dried over Na2SO4
  3. concentrationconcentrated
  4. customThe residue is purified by flash column chromatography (silica gel, DCM/10% MeOH in DCM=100:0 to 0:100)

출처 및 근거

ORD 기록
ord-fcd54eb4ed9c426fae04e7c757fc6d24
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08822534B2

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