反应详情

1,1-dimethylethyl 7-(4-(methyloxy)-2-{[(4-methyl-2-pyridinyl)methyl]oxy}phenyl)-1,2,4,5-tetrahydro-3H-3-benzazepine-3-carboxylate (4.8 g) was dissolved in dioxane (20 ml). Gaseous hydrogen chloride was passed through the reaction mixture for 1.5 h. The reaction was monitored by TLC. On completion the solid formed was collected by filtration and washed with acetone. The solid was then dissolved in water and the mixture was brought to pH8 using aqueous sodium bicarbonate. The sticky solid observed was extracted with DCM. The organics were dried over sodium sulphate and concentrated in vacuo to yield a solid. This was purified by column chromatography eluting with 0-8% methanol in DCM. Appropriate fractions were combined and concentrated in vacuo to yield a solid. This was triturated in diethyl ether to yield the title compound, 1.7 g (45%).

1. customOn completion the solid formed
2. filtrationwas collected by filtration
3. washwashed with acetone
4. dissolutionThe solid was then dissolved in water
5. extractionThe sticky solid observed was extracted with DCM
6. dry with materialThe organics were dried over sodium sulphate
7. concentrationconcentrated in vacuo
8. customto yield a solid
9. customThis was purified by column chromatography
10. washeluting with 0-8% methanol in DCM
11. concentrationconcentrated in vacuo
12. customto yield a solid
13. customThis was triturated in diethyl ether