(4R)-tert-butyl 4-((6-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yl)oxy)-6-azaspiro[2.5]octane-6-carboxylate 、
3,6-二氢-2H-吡喃-4-硼酸频哪醇酯 、
Tripotassium;phosphate 、 以
1,4-二氧六环 、
水 为溶剂,
反应 0.17h,
以to give (4R)-tert-butyl 4-(6-(5-(3,6-dihydro-2H-pyran-4-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yloxy)-6-azaspiro[2.5]octane-6-carboxylate (210 mg, 0.357 mmol, 80% yield) as a colorless oil的产率得到(4R)-tert-butyl 4-(6-(5-(3,6-dihydro-2H-pyran-4-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yloxy)-6-azaspiro[2.5]octane-6-carboxylate