ETHYLENICALLY UNSATURATED BILE ACID DERIVATIVES, PROCESSES FOR THEIR PREPARATION AND PRECURSORS

摘要

Ethylenically unsaturated bile acid derivatives of the formula I G - X - A I in which G, X and A have the meanings indicated, are described. They are suitable for the preparation of polymeric bile acid derivatives. Bile acid derivatives of the formula IVa G - X' IVa in which G and X' have the meanings indicated, are also described. They are useful synthesis components for the preparation of pharmaceuticals.