Patent ID: 7410951

Claim:
A compound of general formula I wherein: R 1 , R 2 , and R 70 independently represent a hydrogen atom or an optionally substituted alkyl or acyl group, wherein the alkyl or acyl group has up to 8 carbon atoms, and wherein the optional substituents are selected from the group consisting of halogen atoms and nitro, cyano, alkoxy, hydroxy, amino, alkylamino, sulfinyl, alkylsulfinyl, sulfonyl, alkylsulfonyl, amido, alkylamido, alkylcarbonyl, haloalkoxycarbonyl, and haloalkyl groups; Y represents an optional substituent; n represents 0, 1, 2, 3, or 4; R 3 represents a hydrogen atom, or an optionally substituted alkyl group; R 74 represents a hydrogen atom, a hydroxy group or an optionally substituted alkyl or acyl group; R 7 represents a hydrogen atom or an alkyl group; R 75 represents an optionally substituted alkyl group up to 6 carbon atoms; and i) R 71 represents a hydrogen atom or an optionally substituted alkyl or acyl group; and R 72 represents a hydrogen atom; or ii) R 71 and R 72 each represent radicals so that a double bond is formed between the carbon atoms to which they are attached.