Herein we describe the synthesis of highly substituted chromans and isochromans using carbohydrates as starting ... steps and completed by a cyclization to annelate the benzene moiety.

CβG biosynthesis is catalyzed by cyclic β-1,2-glucan synthase (CGS), an enzyme that catalyzes the cyclization (closed ring formation) of linear β-1,2-glucan (LβG). Since the method for large ...