abstract |
The present invention relates to compounds of formula (I) and to drugs:n n n n n n n n Wheren n n R 1 is an NR 3 SO 2 R 4 group; here,n n n R 3 is a hydrogen atom or an alkyl group,n n n R 4 is an alkyl, aryl or NR 5 R 6 group;n n n R 2 is an alkyl, cycloalkyl or cycloalkylalkyl group. |