Substitution on the A-Ring Confers to Bryopyran Analogues the Unique Biological Activity Characteristic of Bryostatins and Distinct From That of the Phorbol Esters
2009-02-05T00:00:00Z (GMT) by
A close structural analogue of bryostatin 1, which differs from bryostatin 1 only by the absence of the C30 carbomethoxy group (on the C13 enoate of the B-ring), has been prepared by total synthesis. Biological assays reveal a crucial role for substitution in the bryostatin 1 A-ring in conferring those responses which are characteristic of bryostatin 1 and distinct from those observed with PMA.
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