Nicotinamide derivatives useful as PDE4 inhibitors
申请人:Bailey Simon
公开号:US20050020587A1
公开(公告)日:2005-01-27
This invention relates to nicotinamide derivatives of general formula (I):
in which X, Y, n, Z, L and R have the meanings defined herein, and to processes for the preparation of, intermediates used in the preparation of, compositions containing and the uses of such derivatives.
We reported the first example of the construction of C–C bonds using unprotected amino acids as stable alkyl/acyl radical precursors under metal-free conditions. This novel, environmentally friendly, and one-pot procedure was successfully applied to the radical alkylation or acylation/cyclization of isocyanides, which selectively affords 6-alkyl or acyl phenanthridines, depending on the substituent