摘要:
New tetrahydrofurancarboxylic acid derivatives of the formula: wherein
R 1 is amino or a protected amino group, R 2 is amino or acylamino and R 3 is carboxy or a protected carboxy group or a pharmaceutically acceptable salt thereof, and processes for their preparation, and also a pharmaceutical composition comprising, as an effective ingredient, the above compound in association with a pharmaceutically acceptable, substantially non-toxic carrier or excipient. The invention also relates to the microorganism Chrysosporium pannormu ATCC 20617 and to starting compounds of the formula and their preparation.
摘要:
This invention relates to the new peptide of the general formula:
More particularly, this invention relates to this new peptide and the pharmaceutically acceptable salt thereof, which have pharmacological activities, to processesforthe preparation thereof and to a new intermediate for preparing the active peptide, and to the pharmaceutical composition comprising the same and a method of use thereof.
摘要:
FR-900216 substance obtainable by cultivating ATCC 20577 in a nutrient medium containing sources of assimilable carbon and nitrogen under aerobic conditions and recovering it from the culture broth and its use as an active therapeutic substance especially for treatment of tumor. The invention covers also a pharmaceutical antitumor composition comprising FR-900216 substance in association with a pharmaceutically acceptable, substantially non-toxic carrier or excipient.
摘要:
FR-900216 substance obtainable by cultivating ATCC 20577 in a nutrient medium containing sources of assimilable carbon and nitrogen under aerobic conditions and recovering it from the culture broth and its use as an active therapeutic substance especially for treatment of tumor. The invention covers also a pharmaceutical antitumor composition comprising FR-900216 substance in association with a pharmaceutically acceptable, substantially non-toxic carrier or excipient.
摘要:
Biologically active WS 6049 substances obtainable by culturing a strain belonging to the genus Actinomadura in an aqueous nutrient medium under aerobic conditions and recovering WS 6049-A substance and/or WS 6049-B substance. The invention also relates to a process for preparing the new substances and pharmaceutical compositions comprising such substances as an active ingredient together with a non-toxic, pharmaceutically acceptable carrier.
摘要:
Compounds of the formula: wherein R 1 is hydrogen, alkanoyloxy or alkenoyloxy; R 2 is alkyl or alkenyl; R 3 and R 4 are each hydrogen, lower alkyl, hydroxy(lower)alkyl, ar(lower) alkyl, esterified carboxy(lower)alkyl, carboxy-(lower)alkyl, protected amino(lower)alkyl or amino(lower)alkyl; R 5 is hydrogen, hydroxy(lower)alkyl, protected amino-(lower)alkyl, amino(lower)alkyl, carboxy(lower)alkyl or esterified carboxy(lower)alkyl; R 6 is carboxy, esterifed carboxy or sulfo(lower)alkyl; A 1 , A 2 and A3 are each bond or lower alkylene; and m and n are each an integer of 0 or 1; and their pharmaceutically- acceptable salts have anti-complementary activity and fibrinolytic activity, and are useful as therapeutic agents for immunecomplex diseases or autoimmune diseases such as nephritis, rheumatic diseases, systemic lupus erythematosus, etc. and thrombosis such as cerebral apoplexy, coronary insufficiency, pulmonary embolism.
摘要:
The present invention provides compounds of the formula:- wherein A is a lower alkylene group; R' is a carboxy, hydroxy, protected hydroxy, lower alkoxycarbonyl, lower alkoxycarbonylamino or lower alkanoyloxy group; R 2 is a hydrogen or halogen atom or a halo (lower) - alkyl group; R 3 is a hydrogen or halogen atom; R 4 is a hydrogen atom or a hydroxy, carboxy, lower alkoxy, lower alkanoyloxy or lower alkoxycarbonyloxy group and R 5 is a hydrogen or halogen atom or R 4 and R 5 together represent the group =CH 2 ; F is the number of double bonds which is equal to 0 or 1 and n is an integer of 0 or 1, with the proviso that when F is 0 then n is 1 and when F is 1 then n is 0; and the pharmaceutically- acceptable salts thereof. The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them. Futhermore, the present invention is concerned with the use of these compounds for the treatment of diabetic cataract and/or neuropathy.
摘要翻译:本发明提供下式的化合物:其中A为低级亚烷基; R 1是羧基,羟基,保护的羟基,低级烷氧基羰基,低级烷氧基羰基氨基或低级烷酰氧基; R 2是氢或卤素原子或卤代(低级) - 烷基; R 3是氢或卤素原子; R 4是氢原子或羟基,羧基,低级烷氧基,低级烷酰氧基或低级烷氧基羰氧基,R 5是氢或卤素原子,或者R 4和R 5一起代表基团= CH 2 ; F是等于0或1的双键数,n是0或1的整数,条件是当F为0时,n为1,当F为1时,n为0; 及其药学上可接受的盐。 本发明还提供了制备这些化合物的方法和含有它们的药物组合物。 此外,本发明涉及这些化合物用于治疗糖尿病性白内障和/或神经病变的用途。