Taiho Pharmaceutical Company Limited

Katsuo Takikawa

Makoto Kajitani

Takaji Honna

Hidekazu Miyake

Takahiro Yabuuchi

Masakatu Hisaki

Hajime Fujimura

Yasuzo Hiramatsu

Mitsugi Yasumoto

Yuji Yamada

Akihide Koda

Ichiro Yamawaki

Mikio Hori

Sadao Hashimoto

Takashi Suzue

Ryuji Sakakibara

Hajime Fujmura

Yasushi Kurashige

Yoko Osame

Yasuzo Hiramatu

Hiroshi Minami

An analgesic compositon containing as active ingredient an allophanoylpiperazine compound represented by the general formula ##STR1## wherein R.sup.1 represents a lower alkyl group or phenyl group; R.sup.2 and R.sup.3 each represents a hydrogen atom or a lower alkyl group; and R.sup.4 represents a phenyl group or a substituted phenyl group having as substituent a halogen atom or methyl, trifluoromethyl, hydroxyl, methoxy, methylenedioxy, nitro, or carboxyl group; pyridyl group, pyrimidyl group, thiazolyl group, benzyl group, cinnamyl group, cyclohexyl group, a lower alkyl group, a substituted lower alkyl group having chlorine atom or hydroxyl group as substituent; or a lower alkenyl group.

Allophanoylpiperazine compound and analgesic composition containing same

Sulfonium compounds represented by the formula ##STR1## having immunostimulant activity and useful as the active components of drugs and agricultural chemicals.

Sulfonium compounds

An analgesic, anti-inflammatory or anti-pyretic composition containing 1,1,3,5-substituted biuret compound of the formula, ##STR1## wherein R.sup.1 is a lower alkyl group or a phenyl group; R.sup.2 is a lower alkyl group, a phenyl group or a substituted phenyl group having chlorine atom(s), methyl group(s) or methoxy group(s) as the substituent(s), further R.sup.1 and R.sup.2 may form a single ring containing one or two hetero atoms including the adjacent nitrogen atom; R.sup.3 is a hydrogen atom, a lower alkyl group or a phenyl group; R.sup.4 is a phenyl group, a substituted phenyl group having halogen atom(s), trifluoromethyl group(s), methyl group(s), methoxy group(s), dimethyl-amino group(s), nitro group(s), hydroxyl group(s), acetyl group(s), or methylthio group(s) as the substituent(s), a benzyl group, a cyclohexyl group or a lower alkyl group, as the active ingredient.

Pharmaceutical composition containing 1,1,3,5-substituted biuret compound

An analgesic, anti-inflammatory or anti-pyretic composition containing 1,3,5-substituted biuret compound of the formula, ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group, a substituted lower alkyl group having chlorine atom(s), cyano group(s), dimethylamino group(s), hydroxy group(s), methoxy group(s) or carboxy group(s) as the substituent(s), a lower alkenyl group, a hydroxy group, a methoxy group, an acetyl group or a phenyl group; R.sup.2 is a hydrogen atom, a lower alkyl group or a phenyl group; R.sup.3 is a phenyl group, a substituted phenyl group having halogen atom(s), trifluoromethyl group(s), methyl group(s), methoxy group(s), methylenedioxy group(s), hydroxy group(s), dimethylamino group(s), carboxy group(s) or carboxymethyl group(s) as the substituent(s), a benzyl group, a pyridyl group, a substituted pyridyl group having methyl group(s) as the substituent(s), a pyridylmethyl group, pyrimidinyl group, a thiazolyl group or a thienyl group, as the active ingredient.

Pharmaceutical composition containing 1,3,5-substituted biuret compound

Sulfonium compounds represented by the formula ##STR1## have anticancer activity, immunostimulant activity and the like, and useful as the active components of drugs and agricultural chemicals.

A novel 1,1,3,5-substituted biuret compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are respectively the same or different, and each are alkyl groups having 1 to 4 carbon atoms; R.sup.3 is a cyclohexyl group or a phenyl group which may be unsubstituted or may have at least one substituent selected from the group consisting of chlorine, bromine, fluorine, methyl, trifluoromethyl, dimethylamino, methoxy, methylthio, nitro and acetyl. The novel 1,1,3,5-substituted biuret compounds are useful as an analgesic, anti-inflammatory and/or anti-pyretic agent.

Novel 1,1,3,5-substituted biuret compound and a pharmaceutical

An analgesic, anti-inflammatory or anti-pyretic composition containing 1,1,3,5-substituted biuret compound of the formula, ##STR1## wherein R.sup.1 is a lower alkyl group or a phenyl group; R.sup.2 is a lower alkyl group, a phenyl group or a substituted phenyl group having chlorine atom(s), methyl group(s) or methoxy group(s) as the substituent(s), further R.sup.1 and R.sup.2 may form a single ring containing one or two hetero atoms including the adjacent nitrogen atom; R.sup.3 is a hydrogen atom, a lower alkyl group or a phenyl group; R.sup.4 is a phenyl group, a substituted phenyl group having halogen atom(s), trifluoromethyl group(s), methyl group(s), methoxy group(s), dimethylamino group(s), nitro group(s), hydroxyl group(s), acetyl group(s) or methylthio group(s) as the substituent(s), a benzyl group, a cyclohexyl group or a lower alkyl group, as the active ingredient.

Pharmaceutical composition and methods of use containing

An N-substituted guanidino acid derivatives having the following formula of ##EQU1## wherein R is an alkyl having 6 to 15 carbon atoms,. a cycloalkyl having 6 to 15 carbon atoms or an aryl(C.sub.6 to C.sub.8)alkyl(C.sub.1 to C.sub.9); A represents R.sup.1 or R.sub.2 CO--, R.sup.1 being an alkyl having 1 to 4 carbon atoms, an alkenyl having 2 to 4 carbon atoms, cyclohexyl, a phenyl containing or not containing a substitute of a lower alkyl, a halogenated lower alkyl, a lower alkoxy, hydroxy or a halogen, or a benzyl containing or not containing a substitute of a lower alkyl, a halogenated lower alkyl, a lower alkoxy, hydroxy or a halogen, and R.sup.2 being an alkyl of 1 to 3 carbon atoms, an alkenyl of 2 to 3 carbon atoms, an aryl of 6 to 8 carbon atoms or an aryl(C.sub.6 to C.sub.8)alkyl(C.sub.1 to C.sub.2); and n is an integer of 4 to 10. The present compounds are excellent in pharmacological activities, particularly in antagonism to bradykinin and histamine, and useful as anti-inflammatory agent.

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Naruto, Japan

Katsuo Takikawa