Potassium Phosphate, Tribasic → 2-(6-tert-butyl-3-methyl-1-oxo-3,4-dihydrophthalazin-2(1H)-yl)-6-(5-carbamoyl-1-methyl-1H-pyrrol-3-yl)benzyl acetate

HRID 1025579ノート

反応式

HRID 1025579 の反応式
Br[C:2]1[CH:3]=[C:4]([C:8]([NH2:10])=[O:9])[N:5]([CH3:7])[CH:6]=1.[C:11]([O:14][CH2:15][C:16]1[C:21](B2OC(C)(C)C(C)(C)O2)=[CH:20][CH:19]=[CH:18][C:17]=1[N:31]1[N:40]([CH3:41])[CH2:39][C:38]2[C:33](=[CH:34][CH:35]=[C:36]([C:42]([CH3:45])([CH3:44])[CH3:43])[CH:37]=2)[C:32]1=[O:46])(=[O:13])[CH3:12].CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>O.O1CCOCC1>[C:11]([O:14][CH2:15][C:16]1[C:21]([C:2]2[CH:3]=[C:4]([C:8](=[O:9])[NH2:10])[N:5]([CH3:7])[CH:6]=2)=[CH:20][CH:19]=[CH:18][C:17]=1[N:31]1[N:40]([CH3:41])[CH2:39][C:38]2[C:33](=[CH:34][CH:35]=[C:36]([C:42]([CH3:45])([CH3:44])[CH3:43])[CH:37]=2)[C:32]1=[O:46])(=[O:13])[CH3:12]

参加物

7

反応物 4

HCID 62657Potassium Phosphate, TribasicHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 434111534-bromo-1-methyl-1H-pyrrole-2-carboxylic acid amideHCID 710087262-(6-tert-butyl-3-methyl-1-oxo-3,4-dihydrophthalazin-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate

生成物 1

HCID 710081532-(6-tert-butyl-3-methyl-1-oxo-3,4-dihydrophthalazin-2(1H)-yl)-6-(5-carbamoyl-1-methyl-1H-pyrrol-3-yl)benzyl acetate収率 16%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
125 °C

実験手順

In a 10 ml microwave vial, 4-bromo-1-methyl-1H-pyrrole-2-carboxamide (82.5 mg, 406 μmol, Eq: 1.00), [prepared in Example 12, Step 1], 2-(6-tert-butyl-3-methyl-1-oxo-3,4-dihydrophthalazin-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate (200 mg, 406 μmol, Eq: 1.00), X-phos (19.4 mg, 40.6 μmol, Eq: 0.10), and potassium phosphate tribasic (259 mg, 1.22 mmol, Eq: 3.00) were combined with 1,4-dioxane (5 ml) and water (0.5 ml) to give a dark brown suspension. The reaction mixture was stirred while purging with argon for 10 min. The reaction mixture was heated at 125° C. in the microwave for 30 min. The reaction mixture was diluted with 50 mL of dichloromethane and dried (MgSO4). Concentrated in vacuo. The crude material was purified by flash chromatography (silica, 20%-100% ethyl acetate/hexanes gradient) to give 2-(6-tert-butyl-3-methyl-1-oxo-3,4-dihydrophthalazin-2(1H)-yl)-6-(5-carbamoyl-1-methyl-1H-pyrrol-3-yl)benzyl acetate (31 mg, 16%): 1H NMR (300 MHz, CHLOROFORM-d) δ ppm 1.37 (s, 9H) 1.98 (s, 3H) 2.68 (s, 3H) 3.99 (s, 2H) 5.28 (s, 2H) 6.72 (d, J=1.89 Hz, 1H) 6.84-6.94 (m, 1H) 7.23 (d, J=1.51 Hz, 1H) 7.27-7.52 (m, 5H) 7.61 (s, 1H) 8.04 (d, J=7.93 Hz, 1H).

後処理

  1. customto give a dark brown suspension
  2. customwhile purging with argon for 10 min
  3. additionThe reaction mixture was diluted with 50 mL of dichloromethane
  4. dry with materialdried (MgSO4)
  5. concentrationConcentrated in vacuo
  6. customThe crude material was purified by flash chromatography (silica, 20%-100% ethyl acetate/hexanes gradient)

出典と根拠

ORDレコード
ord-e9e0cc40877e48d0932d4fac2fb31baa
出典データセット
uspto-grants-2014_05
特許番号
US08729078B2

反応ノート

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