Synthesis and biological activity of some cardiotonic compounds related to gitoxigenin

Add time:07/25/2019    Source:sciencedirect.com

The four diastereomeric 3,16-diacetates 6, 9, 10 and 11 were prepared from gitoxin 1 by the routes shown in Schemes 1 and 2 and tested for inotropic activity in the isolated guinea-pig atrial preparation. In line with earlier findings in the digitoxigenin series, derivatives with a 3α-acetoxy function, viz 9 and 10, possessed high biological activity.

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