174709-89-8Relevant articles and documents
Synthetic routes to a constrained ring analog of didemnin B
Mayer, Scott C.,Pfizenmayer, Amy J.,Joullie, Madeleine M.
, p. 1655 - 1664 (2007/10/03)
The didemnin class of biologically active cyclodepsipeptides, isolated from a marine tunicate, has shown antitumor, antiviral, and immunosuppressive activities. Synthetic studies were undertaken to prepare a modified analog of one of the most potent congeners, didemnin B (1). The side chain of the isostatine unit was tethered into the macrocycle via a cyclohexane ring in order to provide a more rigid conformation and determine the importance of this unit in bioactive compounds. This modification created a new macrocycle core and generated a diastereomeric mixture of a constrained analog of didemnin B (2).