Short Synthesis of Orthogonally Protected 3α,12α-Diamino-5β-cholan-24-oic Acid, a Dipodal Steroid Scaffold for Combinatorial Chemistry
作者:Dieter Verzele、Annemieke Madder
DOI:10.1002/ejoc.200600972
日期:2007.4
A short, practical, multigram-scale synthesis of C3α-NHAlloc, C12α-NHBoc-diamino-5β-cholan-24-oic acid 2 was developed, applying a new, straightforward synthetic strategy. Key features are the conservation of the carboxyl moiety at C24 during oxime reduction, the late differentiation between the C3 and C12 amino groups and the gradual separation of diastereomers during the synthesis. This orthogonally
Sequence-selective DNA recognition and enhanced cellular up-take by peptide–steroid conjugates
作者:Yara Ruiz García、Abhishek Iyer、Dorien Van Lysebetten、Y. Vladimir Pabon、Benoit Louage、Malgorzata Honcharenko、Bruno G. De Geest、C. I. Edvard Smith、Roger Strömberg、Annemieke Madder
DOI:10.1039/c5cc07097j
日期:——
Several GCN4 Leucine Zipper Transcription Factor (TF) models have previously been designed and synthesized. However, the synthetic routes towards these constructs are typically tedious and difficult. We here describe the...