Sumitomo Chemical Company, Limited

Sumitomo Pharmaceuticals Company Limited

Sumitono Pharmaceutical Company, Limited

Kikuo Ishizumi

Hisao Yamamoto

Shigeho Inaba

Kazuo Mori

Michihiro Yamamoto

Naohito Ohashi

Isamu Maruyama

Fujio Antoku

Masao Koshiba

Toshiyuki Hirohashi

Shoji Nagata

Mitsuhiro Akatsu

Yoshiharu Kume

Takahiro Izumi

Junki Katsube

Norihiko Tanno

Hiromi Sato

Michihisa Muramatsu

Yukio Asami

Kozo Shimago

Takaharu Ikeda

Noboru Yoshida

Tadashi Okamoto

Atsuyuki Kojima

Shunji Aono

Ikutaro Saji

Tsuyoshi Kobayashi

Masaru Fukui

Mayumi Yoshigi

Hiroyuki Mizote

Masashi Nakatsuka

Teruo Sakurama

Shinya Morisada

Atuyuki Kojima

Takeshi Akase

A compound of the formula: ##STR1## or its acid addition salt, which is useful as a psychotic drug.

Imide derivatives and their pharmaceutical use

A succinimide derivative of the formula: ##STR1## wherein R is a pyridyl or pyrimidinyl group substituted with at least one member selected from the group consisting of halogen, lower alkyl, lower alkoxy, cyano, benzyloxy, hydroxyl and amino, and n is an integer of 1 or 2, or a pharmaceutically acceptable acid addition salt thereof. The succinimide derivatives are useful as an anti-anxiety drugs.

Succinimide derivatives, and their production and use

A compound of the formula: ##STR1## wherein A is a carbonyl group or a sulfonyl group;

Imide derivatives and compositions for use as antipsychotic agents

Novel phenylserine derivatives of the formula: ##STR1## and pharmaceutically acceptable acid addition salts thereof, pharmaceutical compositions, and a process for preparing the compounds are disclosed. The phenylserine derivatives and pharmaceutically acceptable acid addition salts are capable of inhibiting the biosynthesis of leucotrienes and/or antagonistic activity against SRS-A and hence are useful for prophylaxis and treatment of various allergic diseases (e.g. bronchial asthma, allergic nasitis, urticaria), ischemic heart diseases, ischemic encephalopathy, inflammation, or the like.

Phenylserine derivatives and processes for preparing the same

9-Aminonaphthacene derivative having the formula: ##STR1## wherein R.sup.1 and R.sup.2 are both hydrogen atoms or either one of them is a hydrogen atom and the other is hydroxy group or methoxy group; R.sup.3 is acetyl group or 1-hydroxyethyl group; R.sup.4 is a hydrogen atom; R.sup.5 is a hydrogen atom, hydroxy group, lower alkanoyloxy group, amino group, halogen-substituted lower alkanoylamino group or morpholino group; R.sup.6 is a hydrogen atom, hydroxy group, lower alkanoyloxy group or tetrahydropyranyloxy group; R.sup.7 is a hydrogen atom or methyl group; R is a hydrogen atom; and n is zero or one, which is useful as anti-cancer chemical agents with lower toxicity and with little local irritation and is able to orally be applied.

Aminonaphthacene derivatives

A (7S,9S) isomer or its racemic modification of the aminonaphthacene derivative of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a hydroxyl group or a lower alkoxy group, R.sup.2 is a hydrogen atom or a hydroxyl group, R.sup.3 and R.sup.4 are each a lower alkoxy group or, when taken together, represent an ethylenedioxy group or an oxo group, A is an ethylene group optionally bearing at least one lower alkyl and Q is a hydroxyl group, a lower alkoxy group or a dimethylamino group, or an acid addition salt thereof, which is useful as an anti-tumor agent.

Aminonaphthacene derivatives and their production

A succinimide derivative of the formula: ##STR1## wherein A is straight or branched C.sub.2 -C.sub.6 alkylene or alkenylene, B is straight or branched C.sub.3 -C.sub.5 alkylene, D is straight or branched C.sub.2 -C.sub.3 alkylene, E is straight or branched C.sub.2 -C.sub.3 alkylene, R.sup.1 and R.sup.2 are each hydrogen or C.sub.1 -C.sub.4 alkyl, or they may form a single bond and R.sup.3 is a phenyl group optionally substituted with C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen and/or trifluoromethyl, a 2-pyridyl group optionally substituted with halogen, a 2-pyrimidyl group optionally substituted with halogen, a group of the formula: ##STR2## (in which R.sup.4 is hydrogen or phenyl), a group of the formula: CO--R.sup.5 (in which R.sup.5 is adamantyl or furyl) or hydroxy (C.sub.2 -C.sub.4) alkyl, and an acid addition salt thereof, which are useful as anti-anxiety drugs and/or anti-allergic drugs.

N-(substituted piperazinyl) alkylbicyclic succinimide derivatives

A process for producing racemic or optically active threo- or erythro-3-(3,4-dihydroxyphenyl)serine which comprises phthaloylating the amine group of a racemic or optically active threo- or erythro-3-(3,4-dihydroxyphenyl)serine derivative to yield a racemic or optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxyphenyl)serine derivative and removing the phthaloyl group from the racemic or optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxyphenyl)-serine to yield the racemic or optically active threo- or erythro-3-(3,4-dihydroxyphenyl)serine.

Process for producing 3-(3,4-dihydroxyphenyl) serine

An aminonaphthacene derivative of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a hydroxyl group or a lower alkoxy group, R.sup.2 is a hydrogen atom or a hydroxyl group, R.sup.3 is a hydrogen atom or a lower alkanoyl group and R.sup.4 and R.sup.5 are, same or different, each a hydrogen atom, a lower alkyl group, a lower hydroxyalkyl group or a group of the formula: ##STR2## wherein A is an alkylene group which may have one or more lower alkyl substituent(s) and R.sup.6 and R.sup.7 are, same or different, each a hydrogen atom, a lower alkyl group, a lower hydroxyalkyl group or a lower aminoalkyl group, and an acid addition salt thereof, which is useful as anti-tumor agent.

Novel aminonaphthacene derivatives and process for preparation thereof

A process for preparing an optically active cis-1,3-dibenzylhexahydro-1H-furo[3,4-d]imidazole-2,4-dione of the formula: ##STR1## wherein an asterisk (*) indicates an asymmetric carbon, Bzl represents a benzyl group and the 3a- and 6a-positions take the cis-configuration, which comprises reducing selectively an optically active cis-imidazolidinedicarboxylic acid monoester of the formula: ##STR2## wherein R is a C.sub.1 -C.sub.6 alkyl group and Bzl is as defined above with a reducing agent at either one of the carboxyl group and the alkoxycarbonyl group in the said monoester, followed by cyclization.

Preparation of optically active

Succinimide derivatives representable by the following formula: ##STR1## wherein X and Y are combined to form a group of the formula: ##STR2## (wherein A is an oxygen atom, a methylene group or an ethylene group and a full line accompanying a broken line   is a single bond or a double bond) and Z is a hydrogen atom or, X and Z are combined to form a group of the formula: ##STR3## (wherein A and a full line are each as defined above) and Y is a hydrogen atom, R is a phenyl group, optionally substituted with halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or trifluoromethyl, a 2-pyridyl group or a 2-pyrimidinyl group and n is an integer of 3 or 4, and pharmaceutically acceptable acid addition salts thereof, which are useful as antianxious substances.

Substituted succinimides, compositions and method of use

Aminonaphthacene derivatives of the formula: ##STR1## wherein A is either one of the following groups: ##STR2## wherein R.sup.1 is a hydrogen atom or a group of the formula: --COR.sup.7, R.sup.2 and R.sup.3 are each a lower alkoxy group or, when taken together, represent an ethylenedioxy group or an oxo group, R.sup.4 and R.sup.5 are both hydrogen atoms or either one of them is a hydrogen atom and the other is a group of the formula: --COR.sup.7, R.sup.6 is a hydrogen atom, a hydroxyl group or a group of the formula: --OCOR.sup.7 and R.sup.7 is a lower alkyl group, a halo(lower)alkyl group, a phenyl group or a halophenyl group, which are useful as anti-microbial and/or anti-tumor agents, or as intermediates in their production.

Aminonaphthacene derivatives and their use

Succinimide derivatives representable by the following formula: ##STR1## wherein X and Y are combined to form a group of the formula: ##STR2## (wherein A is an oxygen atom, a methylene group or an ethylene group and a full line accompanying a broken line ( ) is a single bond or a double bond) and Z is a hydrogen atom or, X and Z are combined to form a group of the formula: ##STR3## (wherein A and a full line are each as defined above) and Y is a hydrogen atom, R is a phenyl group, optionally substituted with halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or trifluoromethyl, a 2-pyridyl group or a 2-pyrimidinyl group and n is an integer of 3 or 4, and pharmaceutically acceptable acid addition salts thereof, which are useful as antianxious substances.

Succinimide derivatives, compositions and method of use

A process for preparing an optically active cis-1,3-dibenzylhexahydro-1H-furo[3,4-d]imidazole-2,4-dione of the formula: ##STR1## wherein an asterisk (*) indicates an asymmetric carbon, Bzl represents a benzyl group and the 3a- and 6a-positions take the cis-configuration, which comprises reducing selectively an optically active cis-imidazolidinedicarboxylic acid monoester of the formula: ##STR2## wherein R is a C.sub.1 -C.sub.6 alkyl group and Bzl is as defined above with a reducing agent at either one of the carboxyl group and the alkoxycarbonyl group in the said monoester, followed by cyclization, the said monoester being the one obtainable by hydrolysis of a cis-imidazolidinedicarboxylic acid diester of the formula: ##STR3## wherein R and Bzl are each as defined above with an enzymatic material having a capability of hydrolyzing the ester group in the said diester.

Intermediates to optically active

A process for producing an optically active threo-3-(3,4-dihydroxyphenyl)serine represented by the formula ##STR1## which is useful as a remedy for peripheral orthostatic hypotension or as an antidepressant, which process comprises treating threo-3-(3,4-methylenedioxyphenyl)serine or an N-carbobenzoxy derivative thereof represented by the formula ##STR2## wherein A represents a hydrogen atom or a carbobenzoxy group, with a Lewis acid to form threo-3-(3,4-dihydroxyphenyl)serine or an N-carbobenzoxy derivative thereof represented by the formula ##STR3## wherein A is as defined above, and, if A is a carbobenzoxy group, catalytically reducing the resulting compound of formula [2]; a racemic or optically active threo-N-carbobenzoxy-3-(3,4-methylenedioxyphenyl)serine represented by the formula ##STR4## which is a novel compound useful as an intermediate in the above synthesis; and a process for producing said novel compound.

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Toyonaka, Japan

Kikuo Ishizumi