Methanol → Methyl Isoquinoline-4-carboxylate

HRID 1470481노트

반응식

HRID 1470481 반응식
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4]([C:11]([OH:13])=[O:12])=[CH:3][N:2]=1.[CH3:14]CN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.CO>C(Cl)Cl.CN(C1C=CN=CC=1)C>[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4]([C:11]([O:13][CH3:14])=[O:12])=[CH:3][N:2]=1

참가 물질

7

반응물 4

HCID 887MethanolHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 459768Isoquinoline-4-carboxylic acid

생성물 1

HCID 11830161Methyl Isoquinoline-4-carboxylate수율 54.2%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매2회

실험 절차

To a stirred solution of isoquinolin-4-carboxylic acid (Intermediate-14) (1.2 g, 6.9 mmol) in CH2Cl2 (10 mL) was added, EDCI (1.3 g, 8.3 mmol), HOBt (1.12 g, 8.3 mmol), DMAP (84 mg, 0.7 mmol) and the mixture was stirred at RT for 20 min. To this, MeOH (0.33 g, 10.4 mmol) was added and the reaction mixture was further stirred at RT for overnight. It was diluted with CH2Cl2 (100 mL) and washed with water. The organic layer was separated, dried over Na2SO4, filtered and concentrated to give crude product that was purified by flash column chromatography (10% EtOAc:Hexanes) to give the desired product (700 mg, 54%) as pale yellow solid.

후처리

  1. washwashed with water
  2. customThe organic layer was separated
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customto give crude product that
  7. customwas purified by flash column chromatography (10% EtOAc:Hexanes)

출처 및 근거

ORD 기록
ord-adbc1a2304b14efdb89cd11e3e8e9b26
출처 데이터셋
uspto-grants-2015_04
특허 번호
US09006442B2

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