Regioselectivity of Pictet-Spengler cyclization reactions to construct the pentacyclic frameworks of the ecteinascidin-saframycin class of tetrahydroisoquinoline antitumor antibiotics

Regioselectivity of Pictet-Spengler cyclization reactions to construct the pentacyclic frameworks of the ecteinascidin-saframycin class of tetrahydroisoquinoline antitumor antibiotics

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 48, Issue 21, 21 May 2007, Pages 3719-3722

Guillaume Vincent, Jonathan W. Lane, Robert M. Williams,