Reacción #69781

Ecuación de reacción

Dimethyl sulfoxide

Dimethyl sulfoxide

phosphoric acid

methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid

→

titled compound

Methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid phosphate

Disolventes

2-propanol

Condiciones de reacción

Tratamiento posterior

1. 1
   workup.DISSOLUTIONdissolved in the mixture
2. 2
   Temperaturawhile heating the mixture
3. 3
   FiltraciónThe solid was collected by filtration

Procedimiento

Dimethyl sulfoxide (1 mL) and phosphoric acid (25 μL) were added to methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid (96.52 mg). Dimethyl sulfoxide (0.75 mL) was added to and dissolved in the mixture while heating the mixture, and then 2-propanol (2 mL) was added to the mixture and the mixture was cooled to room temperature to be solidified. The solid was collected by filtration to yield the titled compound (114.15 mg).

Fuente