Abstract: There is disclosed a pharmaceutical composition for providing antiinflammatory, antipyretic, analgesic, antiallergic, immunosuppressing or immunomodulating activity which comprises a pyridine derivative of the formula (I): ##STR1## wherein R is an optionally substituted pyridine ring, X is a oxygen atom or --S(O).sub.n --, wherein n is 0, 1 or 2, A is a bivalent C.sub.1-15 hydrocarbon residue whose branched moiety may have a substituent, Y is an oxygen or sulfur atom, R.sub.3 is a hydrogen atom or an optionally substituted hydrocarbon residue, R.sub.4 is an optionally substituted hydrocarbon residue or an optionally substituted monocyclic or bicyclic heterocyclic group, R.sub.3 and R.sub.4 may be joined together with the carbamoyl group or the thiocarbamoyl group to which they are attached to form an optionally substituted heterocyclic group, or R.sub.3 or R.sub.

Abstract: There is disclosed a pharmaceutical composition for providing antiinflammatory, antipyretic, analgesic, antiallergic, immunosuppressing or immunomodulating activity which comprises a pyridine derivative of the formula (I): ##STR1## wherein R is an optionally substituted pyridine ring, X is a oxygen atom or --S(O).sub.n --, wherein n is 0, 1 or 2, A is a bivalent C.sub.1-15 hydrocarbon residue whose branched moiety may have a substituent, Y is an oxygen or sulfur atom, R.sub.3 is a hydrogen atom or an optionally substituted hydrocarbon residue, R.sub.4 is an optionally substituted hydrocarbon residue or an optionally substituted monocyclic or bicyclic heterocyclic group, R.sub.3 and R.sub.4 may be joined together with the carbamoyl group or the thiocarbamoyl group to which they are attached to form an optionally substituted heterocyclic group, or R.sub.3 or R.sub.

Abstract: There is disclosed a pharmaceutical composition for providing antiinflammatory, antipyretic, analgesic, antiallergic, immunosuppressing or immunomodulating activity which comprises a pyridine derivative of the formula (I): ##STR1## wherein R is an optionally substituted pyridine ring, X is a oxygen atom or --S(O).sub.n --, wherein n is 0, 1 or 2, A is a bivalent C.sub.1-15 hydrocarbon residue whose branched moiety may have a substituent, Y is an oxygen or sulfur atom, R.sub.3 is a hydrogen atom or an optionally substituted hydrocarbon residue, R.sub.4 is an optionally substituted hydrocarbon residue or an optionally substituted monocyclic or bicyclic heterocyclic group, R.sub.3 and R.sub.4 may be joined together with the carbamoyl group or the thiocarbamoyl group to which they are attached to form an optionally substituted heterocyclic group, or R.sub.3 or R.sub.

Abstract: There is disclosed a pharmaceutical composition for providing antiinflammatory, antipyretic, analgesic, antiallergic, immunosuppressing or immunomodulating activity which comprises a pyridine derivative of the formula (I): ##STR1## wherein R is an optionally substituted pyridine ring, X is a oxygen atom or --S(O).sub.n --, wherein n is 0, 1 or 2, A is a bivalent C.sub.1-15 hydrocarbon residue whose branched moiety may have a substituent, Y is an oxygen or sulfur atom, R.sub.3 is a hydrogen atom or an optionally substituted hydrocarbon residue, R.sub.4 is an optionally substituted hydrocarbon residue or an optionally substituted monocyclic or bicyclic heterocyclic group, R.sub.3 and R.sub.4 may be joined together with the carbamoyl group or the thiocarbamoyl group to which they are attached to form an optionally substituted heterocyclic group, or R.sub.3 or R.sub.

Abstract: There is disclosed a pharmaceutical composition for providing antiinflammatory, antipyretic, analgesic, antiallergic, immunosuppressing or immunomodulating activity which comprises a pyridine derivative of the formula (I): ##STR1## wherein R is an optionally substituted pyridine ring, X is a oxygen atom or --S(O)n--, wherein n is 0, 1 or 2, A is a bivalent C.sub.1-15 hydrocarbon residue whose branched moiety may have a substituent, Y is an oxygen or sulfur atom, R.sub.3 is a hydrogen atom or an optionally substituted hydrocarbon residue, R.sub.4 is an optionally substituted hydrocarbon residue or an optionally substituted monocyclic or bicyclic heterocyclic group, R.sub.3 and R.sub.4 may be joined together with the carbamoyl group or the thiocarbamoyl group to which they are attached to form an optionally substituted heterocyclic group, or R.sub.3 or R.sub.

Abstract: Disclosed is a compound represented by the formula (I) or a salt thereof: ##STR1## wherein R.sup.1 represents an aliphatic hydrocarbon, aralkyl or aryl group which may be substituted; R.sup.2 represents hydrogen, an aliphatic hydrocarbon group having one or more substituents, an aryl group which may be substituted, an amino group which may be substituted, a formyl group, a nitro group or a halogeno group; A represents a divalent hydrocarbon chain of 2 to 4 carbon atoms which may be substituted; and m represents an integer of 0 to 2, which is useful for treatment and prevention of diseases induced by abnormalities in regulation of reactions in vivo mediated through endothelin or interleukin 1, and of immune diseases and inflammatory diseases.

Abstract: Disclosed is a method of using medicaments for psoriasis containing 3-aminopyrazolo[3,4-d]pyrimidine compounds or their derivatives such as their salts and their glucuronides, which potently inhibit type III allergic reaction (reversed passive Arthus reaction).

Abstract: A phosphate ester of saikosaponin a, b.sub.1, b.sub.2, c, d or h or saikogenin A, C or D, or a pharmaceutically acceptable salt thereof, which exhibits potent antiinflammatory activity against adjuvant arthritis and then can be used safely as a drug for the treatment and prevention of rheumatism, and a process for preparing the same characterized by phosphorylating the saikosaponin or saikogenin.

Abstract: Novel tricyclic fused pyrimidine derivatives represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are independently C.sub.1-8 alkyl or C.sub.2-8 alkenyl;R.sup.3 is hydrogen, C.sub.1-3 alkyl, C.sub.2-3 alkenyl, C.sub.1-6 alkyl-CO-, optionally substituted benzoyl, C.sub.1-4 alkyl-O-CO-, carbamoyl or formyl; andA is C.sub.2-4 alkylene or C.sub.2-4 alkenylene which may be substituted with C.sub.1-3 alkyl, halogen, nitro, amino, oxo, or phenyl optionally substituted with 1 to 2 members selected from the class consisting of amino, nitro, hydroxy, methoxy and methyl, and a salt thereofare useful for antiinflammatory, analgesic, antipyretic, anti-allergic anti-psoriatic and liver-protecting agent.