Reacción #66867

Ecuación de reacción

N-(3-chloro-4-fluorophenyl)-5,6,7,8-tetrahydropyrido[4′,3′:4,5]furo[2,3-d]pyrimidin-4-amine

N-(3-Chloro-4-fluorophenyl)-5,6,7,8-tetrahydropyrido[4′,3′:4,5]furo[2,3-d]pyrimidin-4-amine

(2E)-4-(dimethylamino)but-2-enoic acid hydrochloride

(2E)-4-(Dimethylamino)but-2-enoic acid hydrochloride

DIPEA

TBTU

→

title compound

Rendimiento 56.3%

N-(3-Chloro-4-fluorophenyl)-7-[(2E)-4-(dimethylamino)but-2-enoyl]-5,6,7,8-tetrahydropyrido[4′,3′:4,5]furo[2,3-d]pyrimidin-4-amine

Rendimiento 56.3%

Disolventes

THF

Condiciones de reacción

Tratamiento posterior

1. 1
   Otropurified directly by preparative HPLC
2. 2
   OtroThe product crystallized upon trituration with diethyl ether

Procedimiento

A suspension of N-(3-chloro-4-fluorophenyl)-5,6,7,8-tetrahydropyrido[4′,3′:4,5]furo[2,3-d]pyrimidin-4-amine from Example 39A (100 mg, 0.314 mmol) and (2E)-4-(dimethylamino)but-2-enoic acid hydrochloride from Example 1A (73 mg, 0.44 mmol) in THF (2 mL) was treated with DIPEA (160 mg, 1.26 mmol) and TBTU (150 mg, 0.47 mmol). The mixture was stirred at rt overnight and then purified directly by preparative HPLC. The product crystallized upon trituration with diethyl ether to afford 76 mg (56%) of the title compound.

Fuente