反応 #79385

反応方程式

(1-Benzyl-1H-indazol-5-yl)-(6-chloropyrido[3,4-d]pyrimidin-4-yl)-amine

2-(tributylstannyl)-5-(1,3-dioxolan-2-yl)-furan

→

title compound

(1-Benzyl-1H-indazol-5-yl)-(6-(5-[1,3-dioxolan-2-yl]-furan-2-yl)-pyrido[3.4-d]-pyrimidin-4-yl)-amine

溶媒

dioxane

反応条件

後処理

1. 1
   その他The solvent was removed in vacuo
2. 2
   その他the residue chromatographed on silica

実験手順

(1-Benzyl-1H-indazol-5-yl)-(6-chloropyrido[3,4-d]pyrimidin-4-yl)-amine (4.28 g), 2-(tributylstannyl)-5-(1,3-dioxolan-2-yl)-furan (J. Chem Soc., Chem. Commun., (1988), p560) (10 g) and 1,4-bis(diphenylphosphino)butane palladium (II) chloride (1 g) were heated at reflux in dioxane (150 ml) for 24 hr (Procedure B). The solvent was removed in vacuo and the residue chromatographed on silica. Subsequent trituration gave the title compound as a yellow solid; δH [2H6]-DMSO 10.46 (1H, s), 9.17 (1H, s), 8.74 (1H, s), 8.52 (1H, s), 8.23 (1H, s), 8.18 (1H, s), 7.80-7.68 (2H, m), 7.41-7.22 (5H, m), 7.17 (1H, d), 6.80 (1H, d), 6.06 (1H, s), 5.71 (2H, s), 4.20-3.96 (4H, m).

出典