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Seven new amide (III-IX) derivatives of 6α,7β-di-hydroxyvouacapan-17β-oic acid I (ADV) have been synthesized. Their structures were established by spectroscopic data, including 2D-NMR methods.

Synthesis of 6α,7β-Di-Hydroxyvouacapan-17β-Oic acid derivatives part III: synthesis, 1H- and 13C-NMR of amide derivatives1