Benzene compound and pharmaceutical use thereof

A benzene compound of the formula ##STR129## wherein, W is hydrogen;

• a straight- or branched chain alkyl having 1 to 6 carbon atoms;
• a straight- or branched chain alkenyl having 2 to 6 carbon atoms;
• a straight- or branched chain alkynyl having 2 to 6 carbon atoms;
• or a straight- or branched chain C1-C6 alkyl substituted by 1 to 3 substituents selected from the group consisting of a halogen, a cycloalkyl and a phenyl which may be substituted by hydroxy;
• X is a straight-chain alkyl having carbon atoms in the number of p or a straight-chain alkoxy having carbon atoms in the number of (p-1), wherein the straight-chain alkyl having carbon atoms in the number of p and the straight-chain alkoxy having carbon atoms in the number of (p-1) may have 1 to 3 substituents selected from the group consisting of an alkyl, hydroxy, an alkoxy, an acyloxy, amino, an alkylamino, an acylamino, oxo, a haloalkyl, a halogen and a phenyl which may have 1 to 3 substituents selected from the group consisting of an alkyl, hydroxy, an alkoxy, an acyl, an acyloxy, amino, an alkylamino, an acylamino, a haloalkyl and a halogen;
• Y is hydrogen, an alkyl, hydroxy, an alkoxy, an acyl, an acyloxy, amino, an alkylamino, an acylamino, a haloalkyl or a halogen;
• Z is a straight-chain alkylene having carbon atoms in the number of q;
• p and q are the same or different and each is an integer of 1 to 20, with the proviso of 6.ltoreq.p+q.ltoreq.23;
• m is 1, 2 or 3;
• n is 2 or 3;
• R.sup.1 and R.sup.2 are the same or different and each is hydrogen, an alkyl or an acyl;
• R.sup.3 is hydrogen or an acyl;
• and
• an optically active isomer thereof or a salt thereof.