Quick column chromatography (QCC) and column chromatography (CC) were carried out on silica gel 60H (Merck) and silica gel 100 (230-400 Mesh ASTM, Merck), respectively.
Quick column chromatography (QCC) and column chromatography (CC) were performed by using silica gel 60H (Merck) and silica gel 100 (230-400 Mesh ASTM, Merck), respectively.