摘要:
The present invention has for its object to provide novel biologically active substances which is of value as a therapeutic agent for fungal infections and immune disorders. This invention is related to a biologically active substance TKR2449 analog(s) which is represented by the following general formula (A); (In the formula, R1, R2 and R3 are the same or differ each other, and each represents hydrogen or an alkyl group of carbon number of 1 to 4. R4 is a linear or branched alkyl or alkenyl group of carbon number of 1 to 8.).
摘要:
The present invention has its object to provide a noble antifungal substance which is use of as clinical medicine in the therapy of fungal infectious diseases. The present invention is related to an antibiotic TKR459 having the following chemical formula (1) or its pharmacologically acceptable salt.
摘要:
The antibiotic TKR2999 having the physicochemical properties described below and its pharmacologically acceptable salt: (1) FAB-MS m/z 971 [M+H)]+, (2) the molecular formula: C44H78N10O14, and high-resolution FAB-MS m/z 971.5776 [M+H]+, (3) the ultraviolet absorption spectrum in methanol has an end absorption, (4) the infrared absorption spectrum by KBr method shows the major absorption wave numbers at 3320, 2920, 1680, 1540, 1210, 1140, 840, 800, and 720 cm−1, (5) aspartic acid, threonine, serine, glycine, alanine, &bgr;-alanine, and ornithine are detected by the amino acid analysis using ninhydrin reaction, and (6) the solubility is that it is soluble in methanol, and practically insoluble in hexane, chloroform, and water.
摘要翻译:具有下述物理化学性质的抗生素TKR2999及其药理学上可接受的盐:(1)FAB-MS m / z 971 [M + H]] +,(2)分子式:C44H78N10O14和高分辨率FAB-MS m / z 971.5776 [M + H] +,(3)甲醇中的紫外吸收光谱具有终点吸收,(4)通过KBr方法的红外吸收光谱显示3320,2920,1680,1540,1210的主要吸收波数 ,1140,840,800和720cm -1,(5)通过使用茚三酮反应的氨基酸分析检测天冬氨酸,苏氨酸,丝氨酸,甘氨酸,丙氨酸,β-丙氨酸和鸟氨酸,和(6)溶解度 它是溶于甲醇,几乎不溶于己烷,氯仿和水。
摘要:
The present invention aims to provide a novel sphingosine analogue, which is useful as an intermediate for syntheses of novel lipid derivatives such as sphingolipid derivatives and the like that can regulate the effects of sphingolipid. The present invention relates to a sphingosine analogue represented by the general formula (I) described below. In the formula, as for Q1, Q2 and Q3, Q1 and Q2, which are the same or different each other, are hydrogen, alkyl groups having 1-4 of carbon atoms, acyl groups having 2-5 of carbon atoms, or protecting groups of the amino group, and Q3 is a hydrogen or a protecting group of the hydroxyl group; or Q2 and Q3 make up an isopropylidene group and Q1 is a hydrogen or a protecting group of the amino group. Q4 and Q5, which are the same or different each other, are hydroxyl groups, acyl groups having 2-5 of carbon atoms, —O—Q6, or hydrogen; or Q4 and Q5 make up a covalent bond. Q6 is a protecting group of the hydroxyl group. X1 is —COOH, —CONH2, —CO—Q7, —CH2OH, or —CH2O—Q8. Q7 is a protecting group of the carboxyl group, and Q8 is a protecting group of the hydroxyl group.
摘要:
A novel cyclic peptide having an antifungal activity, its pharmacologically acceptable salts and antifungal medicinal compositions containing the same.
摘要:
The object of the present invention is to provide a novel bioactive substance of value as a therapeutic agent for mycosis, and the like.This invention relates to the bioactive substance TKR1785 of the following general formula (A): ##STR1## (wherein R represents --CH(CH.sub.3).sub.2 or --CH(CH.sub.3)C.sub.2 H.sub.5).
摘要:
The present invention intends to provide a derivative of sphingosine analogue that is able to regulate the functions of sphigolipid, and its pharmaceutical compositions. The present invention is the derivatives of sphingosine analogues represented by the general formula (I) described below. In the formula, R1 and R2, which are the same or different each other, are hydrogen, alkyl groups having 1-4 carbon atoms, or acyl groups having 2-5 carbon atoms. R3 and R4, which are the same or different each other, are hydrogen or hydroxyl groups; or R3 and R4 make up a covalent bond. X1 is —(CH2)n—CO—NH—CH(R5)—R6 or —(CH2)m—O—CO—CH(R7)—R8.
摘要:
A polypeptide having an endonuclease activity derived from a psychrophilic microorganism Shewanella sp. strain AC10, which exhibits high activity at low temperatures, can remove any nucleic acid present in a protein solution and can reduce the viscosity of a protein extract; and a nucleic acid encoding the polypeptide.
摘要:
A polypeptide having an endonuclease activity derived from a psychrophilic microorganism Shewanella sp. strain Ac10, which exhibits high activity at low temperatures, can remove any nucleic acid present in a protein solution and can reduce the viscosity of a protein extract; and a nucleic acid encoding the polypeptide.