1,4-Dioxane → 2-(4-{[tert-Butoxycarbonyl-(3-tert-butoxycarbonylamino-propyl)-amino]-methyl}-phenyl)-3-methoxy-acrylic acid methyl ester

HRID 717737노트

반응식

HRID 717737 반응식
[C:1]([O:5][C:6](=[O:35])[N:7]([CH2:24][CH2:25][CH2:26][NH:27][C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:8][C:9]1[CH:14]=[CH:13][C:12](B2OC(C)(C)C(C)(C)O2)=[CH:11][CH:10]=1)([CH3:4])([CH3:3])[CH3:2].[CH3:36][O:37][C:38](=[O:44])[C:39](I)=[CH:40][O:41][CH3:42].[O-]P([O-])([O-])=O.[K+].[K+].[K+].O1CCOCC1>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[CH3:36][O:37][C:38](=[O:44])[C:39]([C:12]1[CH:13]=[CH:14][C:9]([CH2:8][N:7]([C:6]([O:5][C:1]([CH3:4])([CH3:2])[CH3:3])=[O:35])[CH2:24][CH2:25][CH2:26][NH:27][C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])=[CH:10][CH:11]=1)=[CH:40][O:41][CH3:42]

참가 물질

7

반응물 4

HCID 312751,4-DioxaneHCID 62657Potassium Phosphate, TribasicHCID 54067316Methyl 2-iodo-3-methoxyprop-2-enoateHCID 66578953(3-Tert-butoxycarbonylamino-propyl)-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzyl]-carbamic acid tert-butyl ester

생성물 1

HCID 665788052-(4-{[tert-Butoxycarbonyl-(3-tert-butoxycarbonylamino-propyl)-amino]-methyl}-phenyl)-3-methoxy-acrylic acid methyl ester수율 91.3%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매

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온도
80 °C

실험 절차

A mixture of (3-tert-butoxycarbonylamino-propyl)-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzyl]-carbamic acid tert-butyl ester (6.00 g, 12.25 mmol), 2-iodo-3-methoxy-acrylic acid methyl ester (4.45 g, 18.38 mmol), K3PO4 (7.79 g, 36.75 mmol), Pd(PPh3)4 (0) (0.68 g, 0.61 mmol), dioxane (60 mL) and water (12 mL) was degassed and heated at 80° C. for 20 h under argon atmosphere. The reaction mixture was diluted with EtOAc (500 mL), washed with water (300 mL) and brine (300 mL). The organic solution was concentrated and purified by flash chromatography (0%-30% EtOAc in heptane) to give desired product (5.35 g, 91%) as brown oil. 1NMR (300 MHz, CDCl3): δ 7.56 (s, 1H), 7.30 (d, J=8.1 Hz, 2H), 7.20 (br.d, 2H), 5.20 (br.s, 0.5H), 4.62 (br.s, 0.5H), 4.39 (br, 2H), 3.86 (s, 3H), 3.74 (s, 3H), 3.27 (m, 2H), 3.08 (m, 2H), 1.62 (m, 2H), 1.50 (br.d, 9H), 1.43 (s, 9H). LCMS (EI) m/z: 501 (M+Na+).

후처리

  1. customwas degassed
  2. additionThe reaction mixture was diluted with EtOAc (500 mL)
  3. washwashed with water (300 mL) and brine (300 mL)
  4. concentrationThe organic solution was concentrated
  5. custompurified by flash chromatography (0%-30% EtOAc in heptane)

출처 및 근거

ORD 기록
ord-bdbe27f773c24b9cb91bdbbe3243dc46
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09193731B2

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