Triethylamine → Pyridine-2-carboxylic acid 4-(pyrrolidine-1-carbonyloxymethyl)-cyclohexyl ester

HRID 68484

반응식

HRID 68484 반응식
[OH:1][CH:2]1[CH2:7][CH2:6][CH:5]([CH2:8][O:9][C:10]([N:12]2[CH2:16][CH2:15][CH2:14][CH2:13]2)=[O:11])[CH2:4][CH2:3]1.[N:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[C:23](Cl)=[O:24].C(N(CC)CC)C>C(Cl)Cl.O>[N:12]1([C:10]([O:9][CH2:8][CH:5]2[CH2:6][CH2:7][CH:2]([O:1][C:23]([C:18]3[CH:19]=[CH:20][CH:21]=[CH:22][N:17]=3)=[O:24])[CH2:3][CH2:4]2)=[O:11])[CH2:16][CH2:15][CH2:14][CH2:13]1

참가 물질

6

반응물 3

HCID 8471TriethylamineHCID 135034Pyridine-2-carbonyl chlorideHCID 66837799Pyrrolidine-1-carboxylic acid 4-hydroxycyclohexylmethyl ester

생성물 1

HCID 56952073Pyridine-2-carboxylic acid 4-(pyrrolidine-1-carbonyloxymethyl)-cyclohexyl ester수율 70.1%

시약·촉매·용매 2

HCID 962Water용매HCID 6344Dichloromethane용매

실험 절차

To a solution of pyrrolidine-1-carboxylic acid 4-hydroxy-cyclohexylmethyl ester (1 mmol) in methylene chloride (5 mL) were added picolinoyl chloride (1.1 mmol) and triethylamine (1.5 mmol) and the resulting mixture was stirred for 16 hours at room temperature. The reaction mixture was diluted with water, followed by few times of extraction with methylene chloride. The combined organic layer was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by column chromatography (silica gel, ethyl acetate), thereby completing the preparation of a target compound (233 mg, 70% yield).

후처리

  1. extractionfollowed by few times of extraction with methylene chloride
  2. dry with materialThe combined organic layer was dried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by column chromatography (silica gel, ethyl acetate)

출처 및 근거

ORD 기록
ord-cbcbb27e30584e42ab30cd8da7dcaf04
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08822463B2

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