摘要:
A tylosin derivative represented by the general formula wherein R. represents a hydrogen atom or a hydroxyl group and R. represents (wherein R 9 and R 10 may be the same or different and selected from a hydrogen atom and C, to C. alkyl groups or which may together form an alkylene group having 3-7 carbon atoms) or -S-R 11 (wherein R " represents a furanyl group or a pyridyl group).
摘要:
3-Deoxy mycaminosyl tylonolide derivatives represented by the following general formula and salts thereof: wherein X represents an oxygen atom or =N-OR⁴ (wherein R⁴ represents hydrogen or lower alkyl); R¹ represents a hydrogen atom, an acyl group or an alkylsilyl group; R² represents a hydrogen atom or an acyl group; and R³ represents a hydrogen atom or a hydroxyl group. The compounds of formula (I) have excellent antibacterial activity.
摘要翻译:由下列通式表示的3-脱氧碳霉糖基太乐内酯衍生物及其盐:其中X代表氧原子或= N-OR 4(其中R 4代表氢或低级烷基); R 1代表氢原子,酰基或烷基甲硅烷基; R 2代表氢原子或酰基; R 3代表氢原子或羟基。 式(I)化合物具有优异的抗菌活性。
摘要:
3-Deoxy mycaminosyl tylonolide derivatives represented by the following general formula and salts thereof: wherein X represents an oxygen atom or =N-OR⁴ (wherein R⁴ represents hydrogen or lower alkyl); R¹ represents a hydrogen atom, an acyl group or an alkylsilyl group; R² represents a hydrogen atom or an acyl group; and R³ represents a hydrogen atom or a hydroxyl group. The compounds of formula (I) have excellent antibacterial activity.
摘要:
Mycaminosyl tylonolide derivatives represented by the following general formula (wherein R 1 is a hydroxyl, lower alkanoyloxy, benzoyloxy, or azido group, or an amino group optionally substituted with lower alkyl and/or lower alkanoyl group(s); R 2 is a hydrogen atom or hydroxyl group; R 3 is a hydrogen atom or formyl group; and means a double bond or the group ), and salts thereof. These compounds have antibacterial activity.
摘要:
Novel 23-C-substituted mycaminosyl tylonolide of the general formula (I) wherein R 1 represents a lower alkyl group, an aryl group, a lower alkenyl group or a lower alkinyl group, R 2 represents a hydrogen atom or a hydroxyl group. These compounds have excellent antibacterial activities.