Patent ID: 6080768
Filing Date: 2000-06-27
Classification: A61P,C07C,C07D

Abstract:
A compound of the formula ##STR15## wherein R is a hydrogen atom or an OY group;R.sub.1 is a hydrogen atom or an OY' group;R.sub.2 is a hydrogen atom or an OY"" group; provided that at least one of R, R.sub.1 and R.sub.2 is hydrogen but R,R.sub.1 and R.sub.2 are not contemporaneously hydrogen atoms and R.sub.1 and R.sub.2 are not contemporaneously OY' or OY"" groups respectively;Y, Y' and Y"", the same or different, are a hydrogen atom or an acyl group derived, from acetic, propionic, butyric, isobutyric acid and from optionally substituted benzoic, pyridinecarboxylic acid carbonic or carbamic acid or from a phosphoric acid of the formula ##STR16## wherein R.sub.5 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl optionally substituted by one or more groups selected from the group consisting of hydroxy, alkoxy, acyloxy, amino, carboxy and alkoxycarbonyl; or a phenyl;m is an integer selected from 1 or 2;n is an integer of 3 to 8;P is an integer comprised of 2 to 4;R.sub.3 is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl;R.sub.4 is a phenyl optionally substituted by halogen atoms, C.sub.1 -C.sub.3 alkyl or alkoxy groups or a 5- or 6-membered heteroaryl containing one or more heteroatoms selected from the group consisting of oxygen, nitrogen and sulphur, optionally substituted by halogen atoms, hydroxy groups, C.sub.1 -C.sub.3 alkyl or alkoxy groups;X is CH.sub.2 and, when R.sub.4 is a 5- or 6-membered heteroaryl, X can also be a single bond; and when X is CH.sub.2, R.sub.4 is different from phenyl or pyridyl; the asterisk marks an asymmetric carbon atom; and pharmaceutically acceptable salts thereof.