Preparation of functionalized juglone acetates and juglones via 1,4-dimethoxynaphthalene derivatives: synthesis of anthraquinones related to rhein and aloe-emodin
This strategy enabled us to control the two stereogenic sites in the B ring (C-5 and C-6) and the regioselective introduction of the carbohydrate moiety. The ABCD tetracycle could serve as an ideal platform for the divergent access to various BpAs. The amino acid (D-alanine) was introduced onto the ABCD tetracycle. Glycosylation was promoted by the combination of Cp(2)HfCl(2) and AgOTf (1:2 ratio). Construction
Preparation of functionalized juglone acetates and juglones via 1,4-dimethoxynaphthalene derivatives: synthesis of anthraquinones related to rhein and aloe-emodin
作者:James L. Bloomer、Kenneth W. Stagliano、Joseph A. Gazzillo