Pleuromutilin derivatives for the treatment of diseases mediated by microbes

摘要

A compound of formula (I)
wherein
n is 0 to 4;
m is 0 or 1 with the proviso that the sulphur atom and R 3 are in vicinal position (if m = 0 then R 3 is in position 2', and if m = 1 then R 3 is on position 1');
R is ethyl or vinyl;
R 1 is hydrogen or (C 1-6 )alkyl,
R 2 is hydrogen or
- (C 3 - 6 )cycloalkyl, or
- unsubstituted (C 1 - 6 )alkyl, or
- (C 1 - 6 )alkyl substituted by one or more of
- hydroxy; preferably one or two,
- methoxy,
- halogen,
- (C 3 - 6 )cycloalkyl, or
R 1 and R 2 together with the nitrogen atom to which they are attached form a 5 to 7 membered heterocyclic ring containing at least 1 nitrogen atom or 1 nitrogen and 1 additional heteroatome e. g. selected from N or O, or
R 1 is hydroxy and R 2 is formyl;
R 3 is OH, OR 4 , a halogen atom, or
- with the proviso that R 3 is bound to 2' R 3 represents -O-(CH 2 ) p -O- with p is 2 or 3;
R 4 is unsubstituted (C 1 - 6 )alkyl or (C 3 - 6 )cycloalkyl.