| abstract |
A compound of the formula A ** Formula ** wherein R1 represents H or F, R2 represents halogen, C1-C6 alkyl, C2-C6 alkenyl or halogenated C1-C6 alkyl, R3 represents halogen, H, C1-C6 alkyl, or halogenated C1-C6 alkyl, L is a direct bond or represents CH2, R4 is selected from the group comprising ** Formula ** optionally substituted with C≡N, 1 or 2 C1-C3 alkyls, 1 or 2 halogenated alkyls, 1 or 2 C1-C3 or 1 or 2 halogen alkoxy, X represents C or N, where N is present in 1 or 2 positions and * indicates the point of attachment, and pharmaceutically acceptable salts thereof. |