Sodium Carbonate → Butyl 4-({2-[(tert-butoxycarbonyl)amino]-2-methyl-3-phenylpropoxy}methyl)-6-[(methylsulfonyl)(propyl)amino]pyridine-2-carboxylate

HRID 899449노트

반응식

HRID 899449 반응식
[CH2:1]([C:8]([NH:28][C:29](=[O:35])[O:30][C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:27])[CH2:9][O:10][CH2:11][C:12]1[CH:17]=[C:16]([N:18]([S:22]([CH3:25])(=[O:24])=[O:23])[CH2:19][CH2:20][CH3:21])[N:15]=[C:14](Cl)[CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:36](=[O:39])([O-])[O-:37].[Na+].[Na+]>C(O)CCC.C1C=CC(C#N)=CC=1.C1C=CC(C#N)=CC=1.Cl[Pd]Cl>[C:31]([O:30][C:29]([NH:28][C:8]([CH3:27])([CH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[CH2:9][O:10][CH2:11][C:12]1[CH:17]=[C:16]([N:18]([S:22]([CH3:25])(=[O:24])=[O:23])[CH2:19][CH2:20][CH3:21])[N:15]=[C:14]([C:36]([O:37][CH2:8][CH2:1][CH2:2][CH3:3])=[O:39])[CH:13]=1)=[O:35])([CH3:34])([CH3:33])[CH3:32]

참가 물질

5

반응물 2

HCID 10340Sodium CarbonateHCID 58856338Tert-butyl [1-benzyl-2-({2-chloro-6-[(methylsulfonyl)(propyl)amino]pyridin-4-yl}methoxy)-1-methylethyl]carbamate2회

생성물 1

HCID 67318238Butyl 4-({2-[(tert-butoxycarbonyl)amino]-2-methyl-3-phenylpropoxy}methyl)-6-[(methylsulfonyl)(propyl)amino]pyridine-2-carboxylate

시약·촉매·용매 2

HCID 498840Bis(benzonitrile)palladium chloride촉매HCID 2631-Butanol용매

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온도
100 °C

실험 절차

A suspension of tert-butyl [1-benzyl-2-({2-chloro-6-[(methylsulfonyl)(propyl)amino]pyridin-4-yl}methoxy)-1-methylethyl]carbamate (115 mg, 0.22 mmol, intermediate VI), sodium carbonate (70 mg, 0.66 mmol), PdCl2(PhCN)2 (2 mg, 0.004 mmol), 4A sieves and 1-[2-(dicyclohexylphasphanyl)ferrocenyl]ethyldicyclohexylphosphane (11 mg, 0.017 mmol, STREM) in n-butanol (2 ml, degassed with Argon), was purged with CO and stirred at 100° C. for 16 h under 1 atm of CO. The reaction mixture was diluted with dichloromethane, washed with water and brine, dried over sodium sulfate, concentrated in vacuo, azeothroped with toluene, and purified by flash chromatography (silica, 0-35% EtOAc/hexanes) to provide butyl 4-({2-[(tert-butoxycarbonyl)amino]-2-methyl-3-phenylpropoxy}methyl)-6-[(methylsulfonyl)(propyl)amino]pyridine-2-carboxylate as a yellow oil which was dissolved in 1:1 THF:MeOH (1.6 mL) and treated with aq LiOH (0.38 mL, 0.38 mmol, 1N) for 2 h at rt. The reaction mixture was acidified to pH 3-4 with 1N HCl, extracted with dichloromethane, dried over sodium sulfate, concentrated in vacuo, azeothroped with toluene to give 4-({2-[(tert-butoxycarbonyl)amino]-2-methyl-3-phenylpropoxy}methyl)-6-[(methylsulfonyl)(propyl)amino]pyridine-2-carboxylic acid as a yellow oil. 1H NMR (400 MHz, CDCl3) δ 8.03 (s, 1H), 7.71 (s, 1H), 7.34-7.13 (m, 5H), 4.67 (s, 2H), 4.49 (s, 1H), 3.93 (t, J=7.6 Hz, 2H), 3.72 (A of AB, d, J=9.2 Hz, 1H), 3.62 (B of AB, d, J=9.2 Hz, 1H), 3.17 (A of AB, d, J=13.6 Hz, 1H), 3.05 (s, 3H), 2.90 (13 of AB, d, J=13.6 Hz, 1H), 1.70-1.55 (m, 2H), 1.46 (s, 9H), 1.27 (s, 3H), 0.96 (t, J=7.6 Hz, 3H).

후처리

  1. customwas purged with CO
  2. additionThe reaction mixture was diluted with dichloromethane
  3. washwashed with water and brine
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated in vacuo
  6. custompurified by flash chromatography (silica, 0-35% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-f8ba6a0da2fe4c0789a74a61cff46bb2
출처 데이터셋
uspto-grants-2008_04
특허 번호
US07354942B2

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