Patent ID: 6943272

Claim:
A novel compound of formula: in which the dotted bond is present or absent, and in which R 1 represents: when the dotted bond is present —CHCH 3 OH or —CHCH 3 OCOR or —CHCH 3 XCH 2 CHOHR′ or —CHCH 3 OCHR′CH 2 OH or when the dotted bond is absent or —CHCH 3 OH or —CHCH 3 OCOR or —COCH 3 or —CHCH 3 XCH 2 CHOHR′ or —CH 2 CH 2 XCH 2 CHOHR′ or —CHCH 3 OCHR′CH 2 OH or —CH═CHCOR′ or —CH 2 CH 2 CHR′OH or —CH 2 CH 2 CHR′OCOR or —CH═CHCHOHR′ or —CH═CHCHR′OCOR, in which R represents H, Me, Et, Pr, isoPr, But, isoBut, CH 3 (CH 2 ) 4 , (CH 3 ) 2 CHCH 2 , CH 2 ═CH or (CH 3 ) 2 C═CH, R′ represents H, Me or Et, and X represents O, N or S.