Methyl chloroformate → Tert-butyl 4-{1-[(methoxycarbonyl)oxy]-3-(6-methylpyridin-2-yl)prop-2-yn-1-yl}piperidine-1-carboxylate

HRID 1895991노트

반응식

HRID 1895991 반응식
[OH:1][CH:2]([CH:12]1[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][CH2:13]1)[C:3]#[C:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([CH3:11])[N:6]=1.C(N(CC)CC)C.Cl[C:33]([O:35][CH3:36])=[O:34]>CN(C)C1C=CN=CC=1.C(Cl)Cl>[CH3:36][O:35][C:33]([O:1][CH:2]([CH:12]1[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][CH2:13]1)[C:3]#[C:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([CH3:11])[N:6]=1)=[O:34]

참가 물질

6

반응물 3

HCID 6586Methyl chloroformateHCID 8471TriethylamineHCID 68725592Tert-butyl 4-[1-hydroxy-3-(6-methylpyridin-2-yl)prop-2-ynyl]piperidine-1-carboxylate

생성물 1

HCID 68725060Tert-butyl 4-{1-[(methoxycarbonyl)oxy]-3-(6-methylpyridin-2-yl)prop-2-yn-1-yl}piperidine-1-carboxylate

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매

실험 절차

To a solution of the Compound of Example 39 (50 mg, 0.15 mmol), triethylamine (65 μL, 0.45 mmol) and 4-dimethylaminopyridine (10 mg, 0.07 mmol) in 3 mL of CH2Cl2 cooled at 0-5° C., methyl chloroformate (23 μL, 0.30 mmol) was added dropwise. The reaction mixture was stirred at r.t. overnight. Afterwards, it was evaporated to dryness and purified by automated flash liquid chromatography (Horizon™-Biotage) eluting with Petroleum Ether-EtOAc 8:2 affording the title product (0.28 g) as a brown oil.

후처리

  1. customAfterwards, it was evaporated to dryness
  2. custompurified by automated flash liquid chromatography (Horizon™-Biotage)
  3. washeluting with Petroleum Ether-EtOAc 8:2 affording the title product (0.28 g) as a brown oil

출처 및 근거

ORD 기록
ord-17c29791f4a243a9bda0fb8fea311f67
출처 데이터셋
uspto-grants-2013_08
특허 번호
US08518916B2

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