wherein R¹ represents H, OH, protected OH or alkoxy; R² represents H; R³ represents O or (H,OH); R⁴ represents methyl, ethyl, propyl or allyl; R⁵ represents OH, protected OH or alkoxy; R⁶ represents OH; R⁷ represents OH, alkoxy or NR⁸R⁹ where R⁸ and R⁹ independently represent H, alkyl or aryl; in addition, R¹ and R² may together represent a second bond between the carbon atoms to which they are attached; and R⁶ and R⁷ may together represent O; and pharmaceutically acceptable salts thereof; are useful inter alia as immunosuppressive agents. The invention also provides the novel compounds of formula I.
摘要翻译:式I化合物,其中R 1表示H,OH,保护的OH或烷氧基; R 2表示H; R 3表示O或(H,OH); R 4代表甲基,乙基,丙基或烯丙基; R 5表示OH,保护的OH或烷氧基; R 6表示OH; R 7表示OH,烷氧基或NR 8 R 9,其中R 8和R 9独立地表示H,烷基或芳基; 此外,R 1和R 2可以一起代表它们所连接的碳原子之间的第二键; R 6和R 7可以一起表示O; 及其药学上可接受的盐; 尤其可用作免疫抑制剂。 本发明还提供了新的式I化合物。
摘要:
Compounds of the formula: wherein R¹ is hydrogen or acyl, R² is hydrogen or in which R⁴, R⁵, R⁶ and R⁷ are hydrogen or acyl, R³ is carboxy or protected carboxy, and pharmaceutically acceptable salts thereof. One of these compounds, designated WF11605, can be prepared by culturing a WF11605 - producing microorganism, such as Agonomycetes strain F-11605, in an aqueous nutrient medium under aerobic conditions. Processes are also provided for the preparation of various synthetic derivatives of WF11605. The compound WF11605 and its derivatives possess antimicrobial activity and are useful as antibiotics and as agents for the prevention and treatment of diseases caused by Leukotriene B₄ (LTB₄). Pharmaceutical compositions containing these compounds are described.
摘要:
A compound of the formula : wherein R¹ is hydrogen or an acyl group, R² is an acyl group, R³ is carboxy(lower)alkyl, lower alkyl substituted with carboxy and one or more halogen atom(s), protected carboxy(lower)alkyl, carboxyaryl, protected carboxyaryl, carboxy, protected carboxy, hydroxy(lower)alkyl, sulfino(lower)alkyl, phosphono(lower)alkyl, protected phosphono(lower)alkyl or halo(lower)alkyl, R⁷ is hydrogen or lower alkyl, and A is (in which R⁸ is hydrogen or lower alkyl), and a pharmaceutically acceptable salt thereof, processes for its preparation and pharmaceutical compositions comprising them. The invention also relates to intermediates of the formula and process for production thereof.
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.