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Diisopropylethylamine → (5'-Cyano-4-methyl-3,4,5,6-tetrahydro-2H-(1,2')bipyridinyl-4-yl)-carbamic Acid Benzyl Ester

HRID 855829
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HRID 855829 반응식
Cl.[CH2:2]([O:9][C:10](=[O:19])[NH:11][C:12]1([CH3:18])[CH2:17][CH2:16][NH:15][CH2:14][CH2:13]1)[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.Cl[C:21]1[CH:26]=[CH:25][C:24]([C:27]#[N:28])=[CH:23][N:22]=1.C(N(C(C)C)CC)(C)C>O1CCOCC1>[CH2:2]([O:9][C:10](=[O:19])[NH:11][C:12]1([CH3:18])[CH2:17][CH2:16][N:15]([C:21]2[CH:26]=[CH:25][C:24]([C:27]#[N:28])=[CH:23][N:22]=2)[CH2:14][CH2:13]1)[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 81531DiisopropylethylamineHCID 51520946-Chloro-3-pyridinecarbonitrileHCID 24728615Benzyl (4-methylpiperidin-4-yl)carbamate hydrochloride

생성물 1

HCID 66756595(5'-Cyano-4-methyl-3,4,5,6-tetrahydro-2H-(1,2')bipyridinyl-4-yl)-carbamic Acid Benzyl Ester수율 73.3%

시약·촉매·용매 1

HCID 312751,4-Dioxane용매

실험 절차

A solution of (4-methyl-piperidin-4-yl)-carbamic acid benzyl ester hydrochloride salt (198 mg, 0.697 mmol), 2-chloro-5-cyanopyridine (90 mg, 0.65 mmol) and diisopropylethylamine (400 μL) in dioxane (2 mL) in a sealed tube was heated to 170° C. under microwave conditions for 20 minutes. The reaction mixture was cooled, concentrated and then purified by chromatography (silica gel, eluting with 10% hexane/ethyl acetate to 60% ethyl acetate/hexane) to provide the titled compound (167 mg) as a white foam. MS (CI) m/z 380 (M+1)+; 1H NMR (300 MHz, DMSO-d6) δ ppm 8.45 (s, 1H), 7.80 (dd, 1H), 7.37 (m, 5H), 7.18 (s, 1H), 6.93 (d, 1H), 5.00 (s, 2H), 4.00-3.95 (m, 2H), 3.35-3.26 (m, 2H), 2.19-2.07 (m, 2H), 1.49-1.43 (m, 2H), 1.27 (s, 3H).

후처리

  1. temperatureThe reaction mixture was cooled
  2. concentrationconcentrated
  3. custompurified by chromatography (silica gel, eluting with 10% hexane/ethyl acetate to 60% ethyl acetate/hexane)

출처 및 근거

ORD 기록
ord-d2d009b62baa460a990704ff67536708
출처 데이터셋
uspto-grants-2007_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07262207B2

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