The invention provides new synergistine derivatives of the formula: ##STR1## in which Y=H or N(CH.sub.3).sub.2 and R represents: (a) H or OH, (b) a radical of the formula NR.sub.1 R.sub.2, in which R.sub.1 and R.sub.2 =H, phenyl or pyridyl (optionally substituted by dialkylamino (1 to 4 C), alkyl (1 to 10 C) [optionally substituted by OH, SH, COOH, anilino, or alkylamino or dialkylamino of which at least one of the alkyl parts is substituted by OH, SH, COOH or anilino 9 , alkenyl (3 or 4 C) or alkynyl (3 or 4 C), or alternatively R.sub.1 and R.sub.2 together form a heterocycle optionally containing another heteroatom such as O, S or N (optionally substituted by alkyl), or (c) a halogen atom, a trimethylsilyloxy or dialkylphosphoryloxy radical or a radical --OSO.sub.2 R.sub.3 or --OCOR.sub.4, R.sub.3 being alkyl, trifluoromethyl, trichloromethyl or optionally substituted phenyl and R.sub.4 being defined in the same way as R.sub.3 or being an acylalkyl, alkoxycarbonylalkyl or alkoxy radical, and also their salts and their preparation. These products are useful as intermediates in the synthesis of anti-bacterial synergistine derivatives.
本发明提供新的协同素衍
生物,其公式为:##STR1## 其中Y=H或N(CH.sub.3).sub.2,R代表:(a) H或OH,(b) 公式NR.sub.1 R.sub.2的基团,其中R.sub.1和R.sub.2 =H,苯基或
吡啶基(可选地被二烷基
氨基(1至4C),烷基(1至10C)[可选地被OH,SH,COOH,苯基
氨基或烷基
氨基或二烷基
氨基取代,其中至少一个烷基部分被OH,SH,COOH或苯基
氨基取代],烯基(3或4C)或炔基(3或4C)取代,或者R.sub.1和R.sub.2共同形成一个杂环,该杂环可含有另一个杂原子,如O,S或N(可选地被烷基取代),或(c) 一个卤素原子,三甲
硅氧基或二烷基
磷酰氧基基团或--OSO.sub.2 R.sub.3或--OCOR.sub.4基团,R.sub.3为烷基,三
氟甲基,三
氯甲基或可选地被取代的苯基,R.sub.4定义与R.sub.3相同,或者为酰基烷基,烷氧羰基烷基或烷氧基,以及它们的盐和它们的制备方法。这些产品在合成抗细菌协同素衍
生物中作为中间体是有用的。