摘要:
A novel amino acid derivative represented by the general formula (I) shown below or a salt thereof have now been provided by chemical synthesis, and it has been found that these new compounds stimulate proliferation and physiological activities of the T cells of mammals, have an immunomodulating activity and also have an antitumor activity or a carcinostatic activity. It has also been found that these new compounds have an effect of stimulating the proliferation of hematopoietic stem cells. wherein y is 0 or 1; R1 represents an unsubstituted C1-C8 alkyl group or others; R2 represents a hydrogen atom, a C1-C5 alkyl group or others; R3 represents a hydrogen atom, a C1-C8 alkyl group or others; R4 represents a hydrogen atom, a C1-C3 alkyl group or others; R5 represents a group —OR42, a group or others.
摘要翻译:现在已经通过化学合成提供了由下述通式(I)表示的新型氨基酸衍生物或其盐,并且已经发现这些新化合物刺激哺乳动物T细胞的增殖和生理活性,具有 免疫调节活性,也具有抗肿瘤活性或制癌活性。 还发现这些新化合物具有刺激造血干细胞增殖的作用,其中0或1; R1代表未取代的C 1 -C 8烷基或其它; R 2表示氢原子,C 1 -C 5烷基 基团或其它基团; R 3表示氢原子,C 1〜C 8烷基等; R 4表示氢原子,C 1〜C 3烷基等; R 5表示基团-OR 42,基团等。
摘要:
A novel amino acid derivative represented by the general formula (I) shown below or a salt thereof have now been provided by chemical synthesis, and it has been found that these new compounds stimulate proliferation and physiological activities of the T cells of mammals, have an immunomodulating activity and also have an antitumor activity or a carcinostatic activity. It has also been found that these new compounds have an effect of stimulating the proliferation of hematopoietic stem cells. ##STR1## wherein y is 0 or 1; R.sup.1 represents an unsubstituted C.sub.1 -C.sub.8 alkyl group or others; R.sup.2 represents a hydrogen atom, a C.sub.1 -C.sub.5 alkyl group or others; R.sup.3 represents a hydrogen atom, a C.sub.1 -C.sub.8 alkyl group or others; R.sup.4 represents a hydrogen atom, a C.sub.1 -C.sub.3 alkyl group or others; R.sup.5 represents a group --OR.sup.42, a group ##STR2## or others.
摘要:
As new antibiotics are obtained delaminomycins A, B and C having a formula (I) or (I') shown below, or salts thereof. Delaminomycins preferentially inhibit T cells and are useful as immunosuppressants, antineoplastic agents and antibacterial agents. ##STR1## wherein X is a hydroxyl group for delaminomycin A, a methoxy group for delaminomycin B and a hydrogen atom for delaminomycin C.
摘要:
A new antibiotic, named Conagenin, is provided which can exhibit useful carcinostatic or antitumor activities on carcinomas and tumors, particularly malignant tumors, of mammalian animals including man. Conagenin can be produced by fermentation of microorganisms of genus Streptomyces, typically Streptomyces roseosporus MI696-AF3 strain identified under the deposit number FERM BP-2738. Conagenin has formula (I) and is useful for medicinal purposes, particularly as carcinostatic agent or antitumor agent for inhibiting carcinomas and malignant tumors of mammalian animals, including man.
摘要:
A pharmaceutical composition for treating diarrhea comprising an anti-diarrhea effective amount of conagenin or a salt thereof, and a pharmaceutically acceptable carrier. The pharmaceutical composition is particularly useful against diarrhea caused by the administration of cancer chemotherapeutic agents.
摘要:
As a new antibiotic is provided a compound, now nominated as MI43-37F11 substance, which has formula ##STR1## This MI43-37F11 substance has an antitumor activity, an activity to enhance the production of interleukin-1 in vivo in a mammalian, and an activity to activate a macrophage in vivo in a mammalian. MI43-37F11 substance may be produced by cultivation of Streptoverticillium eurocidicum MI43-37F11 strain identified as FERM BP-2783.
摘要:
The invention relates to an agent for preventing and treating ulcerous colitis and/or Crohn's disease, comprising conagenin or a pharmaceutically acceptable salt thereof as an active ingredient. According to the present invention, there is provided an agent for preventing and treating ulcerous colitis and/or Crohn's disease, which has high therapeutic effect and safety.
摘要:
An image display apparatus having sub-pixels of four colors is provided in which the resolution when an image is two-dimensionally displayed is not affected, and deterioration in the color balance of a three-dimensionally displayed image is suppressed. In the image display apparatus, the arrangement of a sub-pixel for displaying red for a left eye and a sub-pixel for displaying green for a right eye has been replaced with the arrangement of a sub-pixel (Lg1) for displaying green for the left eye and a sub-pixel (Rr1) for displaying red for the right eye. The arrangement of a sub-pixel for displaying blue for the left eye and a sub-pixel for displaying yellow for the right eye has been replaced with the arrangement of a sub-pixel (Lx1) for displaying yellow for the left eye and a sub-pixel (Rb1) for displaying blue for the right eye. Replacement with the sub-pixel and the sub-pixel and replacement with the sub-pixel and the sub-pixel are made for every other pixel.
摘要:
The present invention provides a medicament having a wider treatment spectrum, causing a fewer side effects and superior in tolerability and safety, as compared to known typical antipsychotic agents and atypical antipsychotic agents. The present invention related to a medicament containing (I) a compound which is 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one or a salt thereof, and (II) at least one drug selected from the group consisting of a mood stabilizer, a serotonin reuptake inhibitor, a norepinephrine reuptake inhibitor, a serotonin and norepinephrine reuptake inhibitor, a noradrenergic and specific serotonergic antidepressant, an antianxiety drug, a tricyclic antidepressant, a tetracyclic antidepressant, an antipsychotic drug and an anti-ADHD drug, in combination.
摘要:
Provided is a lead-free dielectric ceramics having a low leakage current value, and a bismuth iron oxide powder as a raw material thereof. The bismuth iron oxide powder includes at least: (A) grains including a bismuth iron oxide having a perovskite-type crystal structure; (B) grains including a bismuth iron oxide having a crystal structure classified to a space group Pbam; and (C) grains including a bismuth iron oxide or a bismuth oxide having a crystal structure that is classified to a space group I23. The dielectric ceramics are made of bismuth iron oxide in which the bismuth iron oxide crystals having the crystal structure classified to the space group Pbam are distributed at a grain boundary of crystal grains of the bismuth iron oxide crystals having the perovskite-type crystal structure.