摘要:
16-membered macrolide derivatives represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a COR.sup.6 group, wherein R.sup.6 represents a straight-chain alkyl group having 1 to 3 carbon atoms; R.sup.2 represents a hydrogen atom or a COR.sup.6 group, wherein R.sup.6 is as defined above; R.sup.3 represents a hydrogen atom or a COR.sup.6 group, wherein R.sup.6 is as defined above; R.sup.4 represents a straight-chain alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted allyl group; and R.sup.5 represents a substituted or unsubstituted, straight-chain or branched alkyl, alkenyl or aralkyl group having 1 to 10 carbon atoms;and pharmaceutically acceptable salts thereof are disclosed. These compounds show excellent and long-acting antimicrobial activities. A novel process for producing these 16-membered macrolide derivatives is further disclosed.
摘要:
16-membered macrolide derivatives represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a COR.sup.6 group, wherein R.sup.6 represents a straight-chain alkyl group having 1 to 3 carbon atoms; R.sup.2 represents a hydrogen atom or a COR.sup.6 group, wherein R.sup.6 is as defined above; R.sup.3 represents a hydrogen atom or a COR.sup.6 group, wherein R.sup.6 is as defined above; R.sup.4 represents a straight-chain alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted allyl group; and R.sup.5 represents a substituted or unsubstituted, straight-chain or branched alkyl, alkenyl or aralkyl group having 1 to 10 carbon atoms; and pharmaceutically acceptable salts thereof are disclosed. These compounds show excellent and long-acting antimicrobial activities. A novel process for producing these 16-membered macrolide derivatives is further disclosed.
摘要:
16-membered macrolide derivatives represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituent group which protects a hydroxyl group; R.sup.2 represents a hydrogen atom or a substituent group which protects a hydroxyl group; R.sup.3 represents a hydrogen atom or a straight-chain aliphatic acyl group having 2 to 4 carbon atoms; and R.sup.4 represents a hydrogen atom or a straight-chain aliphatic or aromatic acyl group having 1 to 10 carbon atoms;or a pharmaceutically acceptable salt thereof are disclosed.A novel process for producing these 16-membered macrolide derivatives is also disclosed.
摘要翻译:由式(I)表示的16元大环内酯衍生物:其中R 1表示氢原子或保护羟基的取代基; R2表示氢原子或保护羟基的取代基; R3表示氢原子或碳原子数2〜4的直链脂肪族酰基, R 4表示氢原子或碳原子数1〜10的直链脂肪族或芳香族酰基, 或其药学上可接受的盐。 还公开了一种制备这些16元大环内酯衍生物的新方法。
摘要:
A method of producing a 3-deacylated derivative of a 16-membered macrolide antibiotic using a microorganism belonging to the genus Phialophora or Preussia which comprises incubating said microorganism with a 16-membered macrolide antibiotic in a medium containing nutritional sources commonly used for incubating microorganisms, isolating a 3-deacylated derivative from the incubation medium, a microorganism to be used for the above method and a novel macrolide antibiotic.
摘要:
16-membered macrolide compounds wherein both of hydroxyl groups at the 3"- and 4"-positions form ether bonds together with two alkyl groups which are either the same or different from each other is useful as an antibacterial agent. The macrolide compounds represented by formula (I) are prepared by chemically modifying midecamycin A.sub.3 to obtain a synthesis intermediate of the formula (II), which is further chemically modified. ##STR1##
摘要:
A compound represented by the general formula (I) or a salt thereof which has excellent antibacterial activity (R1 represents hydrogen atom or an alkylcarbonyl group, R2 represents hydrogen atom, oxygen atom, hydroxyl group, or an alkylcarbonyloxy group, for example, when R2 is hydrogen atom, R3 represents group (a) (each of R5 and R6 represents hydrogen atom or an alkyl group), R4 represents hydrogen atom or group (c) (each of R8 and R9 represents hydrogen atom or an alkylcarbonyl group), and Me represents methyl group).
摘要:
A compound represented by the following general formula (I) or a salt thereof: wherein R&agr; represents a C1-C10 alkyl group, a C3-C10 alkenyl group, a C7-C15 aralkyl group, a quinolinylalkyl group, a quinolinylalkenyl group, a C2-C10 alkylcarbonyl group, a C7-C15 aralkylcarbonyl group, a C4-C7 cycloalkylcarbonyl group, benzoyl group, an imidazolylcarbonyl group and the like; R1 represents hydrogen atom, a C1-C10 alkyl group, or a C2-C10 alkylcarbonyl group; and R2 represents hydrogen atom, a C1-C10 alkyl group, or a C2-C10 alkylcarbonyl group, provided that the compound wherein R&agr; represents a C2-C10 alkylcarbonyl group and both of R1 and R2 represent a C1-C10 alkyl group is excluded.
摘要:
An objective of the present invention is to provide highly water-soluble compounds having integrin &agr;v&bgr;3 antagonistic activity. The compounds according to the present invention are compounds represented by formula (I) and pharmaceutically acceptable salts or solvates thereof: wherein A represents a two nitrogen atom-containing optionally substituted saturated or unsaturated five- to seven-membered heterocyclic group, which is optionally condensed with another carbocyclic ring or heterocyclic ring to form a bicyclic group, or —C(—NR1R2)(═NR3) wherein R1, R2, and R3 represent hydrogen, alkyl or the like; D represents a bond, >NR4, wherein R4 represents hydrogen or optionally substituted alkyl, —O—, or —S—; X and Z represent either CH or N; R7 and R8 represent C1-6 alkyl, halogen, oxygen or the like; Q represents >C═O, >CHR13 or >CHOR13 wherein R13 represents hydrogen or alkyl; R9 represents hydrogen, alkyl or the like; J represents a bond or alkylene having 1 to 3 carbon atoms; R10 and R11 represent hydrogen, alkyl or the like; m is an integer of 0 to 5; n is an integer of 0 to 4; and p and q are an integer of 1 to 3.
摘要翻译:本发明的目的是提供具有整合素α2拮抗活性的高水溶性化合物。 根据本发明的化合物是由式(I)表示的化合物及其药学上可接受的盐或溶剂化物:其中A表示两个含有氮原子的任选取代的饱和或不饱和的五至七元杂环基,其任选地稠合 与另一个碳环或杂环形成双环基团,或-C(-NR 1 R 2)(= NR 3)(其中R 1,R 2和R 3) 代表氢,烷基等; D表示键,NR 4,其中R 4表示氢或任选取代的烷基,-O-或-S-; X和Z表示CH或N; R 7和R 8表示C 1-6烷基,卤素,氧等; Q表示C = O,> CHR 13或CHOR 13,其中R 13表示氢或烷基; R 9表示氢,烷基等; J表示碳原子数1〜3的键或亚烷基。 R 10和R 11代表氢,烷基等; m为0〜5的整数。 n为0〜4的整数。 p和q为1〜3的整数。
摘要:
An objective of the present invention is to provide compounds having integrin &agr;v&bgr;3 antagonistic activity, GP IIb/IIIa antagonistic activity, and/or human platelet aggregation inhibitory activity, and therapeutic agents for treating integrin &agr;v&bgr;3-mediated diseases and for inhibiting platelet aggregation. The derivatives according to the present invention are compounds represented by formula (I) or pharmaceutically acceptable salts or solvates thereof: wherein A represents a five- to seven-membered heterocyclic ring containing two nitrogen atoms or the like; X and Z represent CH or a nitrogen atom; R4 and R5 represent alkyl, halogen or the like; Q represents >C=O, >CH2 or the like; R6 represents H, alkyl, aralkyl or the like; R7 represents H, alkynyl or the like; R8 represents H, substituted amino or the like; R9 represents H or alkyl; m is 0 to 5; n is 0 to 4; p is 2 or 3; and q is 0 or 1.
摘要:
The present invention relates to a compound represented by formula (1) or a salt thereof: wherein R represents a group that is easily removable upon hydrolysis in vivo. This compound is usable in the production of prodrug-type carbapenem antibacterial agents for oral administration. The use of this compound in the process of production of the antibacterial agents can realize enhanced production efficiency and reduced production cost.