反应详情

3.5 g (7.8 mmol) of N-(2-benzyloxy-4-fluoro-phenyl)-7-[[dimethyl(oxo)-λ6-sulfanylidene]amino]-5-methyl-quinazolin-4-amine in DCM are cooled to 0° C., 0.9 ml (9.3 mmol) boron tribromide are added dropwise and the reaction mixture is stirred for 15 min. Water is added cautiously and the aqueous layer is separated and extracted with DCM. The organic phases are pooled, washed with water, dried and evaporated. The residue is treated with isopropanol, filtered and dried.

1. customthe aqueous layer is separated
2. extractionextracted with DCM
3. washwashed with water
4. customdried
5. customevaporated
6. additionThe residue is treated with isopropanol
7. filtrationfiltered
8. customdried