Dimethylformamide → 3-hydroxy-1-methyl-2-{2,2,2-trifluoro-1-[methyl(prop-2-yn-1-yl)amino]ethyl}pyridin-4(1H)-one

HRID 1519040노트

반응식

HRID 1519040 반응식
CN(C=O)C.C(Cl)(=O)C(Cl)=O.[OH:12][C:13]1[C:18](=[O:19])[CH:17]=[CH:16][N:15]([CH3:20])[C:14]=1[CH:21](O)[C:22]([F:25])([F:24])[F:23].CCN(CC)CC.[CH3:34][NH:35][CH2:36][C:37]#[CH:38]>C(#N)C>[OH:12][C:13]1[C:18](=[O:19])[CH:17]=[CH:16][N:15]([CH3:20])[C:14]=1[CH:21]([N:35]([CH3:34])[CH2:36][C:37]#[CH:38])[C:22]([F:25])([F:24])[F:23]

참가 물질

7

반응물 5

HCID 6228DimethylformamideHCID 8471TriethylamineHCID 65578Oxalyl chlorideHCID 96160N-methylpropyn-2-ylamineHCID 67282261HCID 67282261, 화합물

생성물 1

HCID 866728123-hydroxy-1-methyl-2-{2,2,2-trifluoro-1-[methyl(prop-2-yn-1-yl)amino]ethyl}pyridin-4(1H)-one수율 46.4%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

To 20 mL acetonitrile cooled in an ice-water bath was added DMF (0.42 mL, 5.4 mmol) followed by oxalyl chloride (0.47 mL, 5.4 mmol) dropwise. To this resulting suspension was added 3-hydroxy-1-methyl-2-(2,2,2-trifluoro-1-hydroxyethyl)pyridin-4(1H)-one (1.0 g, 4.5 mmol) in one portion. The mixture was then stirred for 2 h. Then, Et3N (2.50 mL, 17.9 mmol) was added to this reaction mixture followed by N-methyl propargylamine (0.75 mL, 9.0 mmol). The reaction mixture was stirred at RT for overnight. The solid was filtered off, and the filtrate was concentrated to dryness. The residue was purified by flash chromatography on silica gel (5% MeOH in CH2Cl2 as eluant) to afford the title compound, Apo7057 (570 mg) as an orange powder. Yield=46.4%; 1H NMR (400 MHz, DMSO+a few drops of D2O) δ (ppm): 7.6 (br. s., 1H), 6.25 (d, J=7.1 Hz, 1H), 5.15 (br. s., 1H), 3.87 (s, 3H), 3.37-3.67 (m, 2H), 3.23 (br. s., 1H), 2.32 (br. s., 3H); MS m/z 275 [M+1]+, 206 (100%).

후처리

  1. stirringThe reaction mixture was stirred at RT for overnight
  2. filtrationThe solid was filtered off
  3. concentrationthe filtrate was concentrated to dryness
  4. customThe residue was purified by flash chromatography on silica gel (5% MeOH in CH2Cl2 as eluant)

출처 및 근거

ORD 기록
ord-74549448097648eba36a76674f383928
출처 데이터셋
uspto-grants-2015_07
특허 번호
US09073865B2

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