| abstract |
A compound of Formula (I) ** Formula ** or a stereoisomeric form thereof, in which R1 is H and R2 is) ** Formula ** or in which R1 and R2, taken together with the carbon atom at which are attached form a radical of formula) ** Formula ** and the bicycle is a bicycle of Formula a)) ** Formula ** or a bicycle of formula b) or a pharmaceutically acceptable salt or solvate thereof. |