Abstract: Compounds represented by the general formula (1) or pharmaceutically acceptable salts thereof, effective in the prevention and/or treatment of infections with microbes: (1) (a) wherein R1 is hydrogen or straight-chain C1-6 alkylcarbonyl; R2 is hydrogen or C1-6 alkylcarbonyl; R3 is hydrogen, C1-6 alkyl, C1-6 alkylcarbonyl, C1-6 alkenyl, C2-6 alkenylcarbonyl, C2-6 alkynyl, or an Ar—B— group (wherein Ar is aryl or a heterocyclic group; and B is C1-6 alkyl, C1-6 alkylcarbonyl, C2-6 alkenyl, C2-6 alkenylcarbonyl, or C2-6 alkynyl); R5, R6, R7 and R8 are each hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, or an Ar—B?— group (wherein B? is C1-6 alkyl, C2-6 alkenyl, or C2-6 alkynyl); X is oxygen or —NR4— (wherein R4 is hydrogen, C1-6 alkyl or C1-6 alkyl which may be substituted with Ar); and R4? is hydrogen or a group represented by the general formula (a) (wherein R3? and R4? are each hydrogen or straight-chain or branched C1-6 alkylcarbonyl)

Abstract: A compound represented by the following general formula (1) or a pharmaceutically acceptable salt thereof, which is useful for a prophylactic and/or therapeutic treatment of a microbial infectious disease.

Abstract: Disclosed are compounds represented by formula (I) which have triglyceride biosynthesis inhibitory activity in the liver and inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein from the liver and particularly have excellent inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein, are free from side effect of accumulation of lipids in the liver, and are useful for the treatment and prevention of hyperlipidemia and arteriosclerotic diseases.

Abstract: Disclosed are compounds represented by formula (I) which have triglyceride biosynthesis inhibitory activity in the liver and inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein from the liver and particularly have excellent inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein, are free from side effect of accumulation of lipids in the liver, and are useful for the treatment and prevention of hyperlipidemia and arteriosclerotic diseases.

Abstract: Disclosed are compounds represented by formula (I) which have triglyceride biosynthesis inhibitory activity in the liver and inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein from the liver and particularly have excellent inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein, are free from side effect of accumulation of lipids in the liver, and are useful for the treatment and prevention of hyperlipidemia and arteriosclerotic diseases.

Abstract: Disclosed are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof. The compounds can inhibit the biosynthesis of triglycerides in the liver and can inhibit the secretion of lipoprotein containing apolipoprotein B from the liver. Therefore, they are useful for the prevention or treatment of hyperlipidemia (particularly hyper-very-low-density-lipoproteinemia) and arteriosclerotic diseases, such as cardiac infarction, or pancreatitis induced by hyperlipidemia.

Abstract: Disclosed are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof. The compounds can inhibit the biosynthesis of triglycerides in the liver and can inhibit the secretion of lipoprotein containing apolipoprotein B from the liver. Therefore, they are useful for the prevention or treatment of hyperlipidemia (particularly hyper-very-low-density-lipoproteinemia) and arteriosclerotic diseases, such as cardiac infarction, or pancreatitis induced by hyperlipidemia.

Abstract: Disclosed are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof. The compounds can inhibit the biosynthesis of triglycerides in the liver and can inhibit the secretion of lipoprotein containing apolipoprotein B from the liver. Therefore, they are useful for the prevention or treatment of hyperlipidemia (particularly hyper-very-low-density-lipoproteinemia) and arteriosclerotic diseases, such as cardiac infarction, or pancreatitis induced by hyperlipidemia.

Abstract: A compound represented by the general formula (I) and a pharmaceutically acceptable salt and solvate thereof having an effect for inhibiting the aggregation of platelets is disclosed: ##STR1## wherein A, B and C represent independently CH.sub.2 or C.dbd.O;X and Y are different from each other, and each of them is CH or N;D is --(CH.sub.2).sub.k -- or --(CH.sub.2).sub.m --CO-- where k is an integer of 1 to 4; and m is an integer of 0 to 3;E is the following group (II) or (III): ##STR2## wherein n is an integer of 1 to 3; and Z is --W--(CH.sub.2).sub.p --COOR.sup.3 (wherein W is --O-- or a bond; p is an integer of 1 to 4; and R.sup.3 is hydrogen, lower alkyl or an ester residue which can be removed under physiological conditions); R.sup.1 is hydrogen or lower alkyl; and R.sup.2 is hydrogen atom or lower alkyl.