摘要:
Compounds comprising a linear .beta.1.fwdarw.6 glucan esterified by caproic acid, the number of D-glucose residues being from 7 to 40 and the number of caproic acid residues being from 2 to 30, may be be obtained by fermentation of a microorganism of the genus Aureobasidium. These compounds are designated HS-142-1. Preferred microorganism is Aureobasidium pullulans var. melanigenum KAC-2383 (FERM-BP 2407).The compounds of the present invention exhibit excellent antagonistic activity to ANP and are capable of inhibiting the bonding of ANP to ANP receptors.
摘要:
A compound of formula (I): ##STR1## wherein R.sub.1 represents hydrogen, hydroxy or acetoxy and R.sub.2 represents hydroxy or acetoxy.The compounds are capable of protecting the nerve cells and also antagonistic activity against N-methyl-D-aspartic acid receptors.They may be prepared by fermentation of a microorganism of the genus Verticillium or a mutant thereof.
摘要:
A new substance K-259-2 having a molecular formula of C.sub.21 H.sub.18 O.sub.7, a molecular weight of 382 and an elemental analysis (%) of H: 4.50, C: 65.53 and N: 0. This substance is of interest in providing a new vasodilating agent in view of its ability to dilate the blood vessel, particularly the artery, of mammals. This substance may be obtained by fermentation of a microorganism Micromonospora sp. K-259 (FERM BP 569).
摘要翻译:分子式为C 21 H 18 O 7,分子量382,元素分析(%)H:4.50,C:65.53和N:0的新物质K-259-2。提供新的血管扩张剂 鉴于其能够扩大哺乳动物的血管,特别是动脉的能力。 该物质可以通过微生物微单孢菌发酵获得。 K-259(FERM BP 569)。
摘要:
The invention relates to biologically pure cultures of Streptomyces sp. RE-701 (FERM BP-3624) and Streptomyces sp. RE-629 (FERM BP-4126) that produce endothelin antagonistic peptides.
摘要:
Peptides represented by the following formula (I): ##STR1## wherein A represents Asn or Asp; B represents His or Lys; and E represents Ala or Ser;(1) X.sup.1 and Y.sup.1 are combined together to form a single bond as X.sup.1 --Y1, or (2) X.sup.1 represents hydrogen and Y.sup.1 represents hydroxy;and Z represents, in case of (1),Trp-Phe-Phe-Asn-Tyr-Tyr-7Hyt-Z.sup.1Trp-Val-Tyr-Phe-Ala-His-Leu-Asp-Ile-Ile-Trp-Z.sup.1,Trp-Val-Tyr-Tyr-Ala-His-Leu-Asp-Ile-Ile-Trp-Z.sup.1,Trp-Leu-Tyr-Phe-Ala-His-Gln-Asp-Val-Ile-Trp-Z.sup.1,Trp-Phe-Phe-Asn-Tyr-R-T-Z.sup.1wherein Z.sup.1 is an organic moiety,wherein R is Tyr or a covalent bond,T is Trp, Ala, Phe, Tyr, Trp-Trp, Asn-Tyr-Tyr-Trp, Trp-Asn-Tyr-Tyr-Trp, Trp-Val-Tyr-Phe-Ala-His-Leu-Asp-Ile-Ile-Trp,or in case of (2), Z representsTrp-Val-Tyr-Phe-Ala-His-Leu-Asp-Ile-Ile-Trp-Z.sup.1Trp-Val-Tyr-Tyr-Ala-His-Leu-Asp-Ile-Ile-Trp-Z.sup.1Trp-Leu-Tyr-Phe-Ala-His-Gln-Asp-Val-Ile-Trp-Z.sup.1.These peptides have endothelin-antagonizing activity, and are useful for treating hypertension, asthma, cerebral apoplexy, angina pectoris, acute renal failure, cardiac infarction and cerebral vasospasm.
摘要:
The invention relates to an endothelin antagonistic peptide of the formula (I): X-A-Trp-B-Gly-Thr-E-G-Y (I) SEQ ID NO: 2 wherein represents Asn or Asp; B represents His or Lys; E represents Ala or Ser; G represents Ala or Pro; X represents X1-Gly or and Y represents hydroxy, lower alkoxy, amino, wherein X1, X3, Y1, Y2 and Z are further defined, or a pharmaceutically acceptable salt thereof.
摘要:
The present invention relates to EI-1941 compounds having interleukin-1 production inhibitory activity which are represented by the formula: ##STR1## wherein either of R.sup.1 and R.sup.2 is hydrogen and the other is hydroxy, or R.sup.1 and R.sup.2 together represent oxygen; and R.sup.3 is hydroxy and R.sup.4 is hydrogen, or R.sup.3 and R.sup.4 together represent --0--.
摘要:
Provided is an Interleukin-1 production inhibiting compound represented by formula (I) ##STR1## wherein R denotes 4-methyl-1-pentenyl, 5-methyl-1,3-heptadienyl or 1-methylpentanyl.
摘要:
The present invention relates to a novel compound EI-2128-1 having IL-1 production inhibitory activity which is represented by formula (I): ##STR1##