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.
本发明提供了新的协同素衍
生物,其
化学式为:## STR1 ## 其中Y = H或N(CH.sub.3).sub.2,R代表:(a)H或OH,(b)式NR.sub.1R.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4 C),烷基(1至10 C)[可选地被OH,SH,COOH,
苯胺基,或烷基
氨基或二烷基
氨基取代,其中至少有一个烷基部分被OH,SH,COOH或
苯胺基9取代,烯基(3或4 C)或炔基(3或4 C),或者R.sub.1和R.sub.2一起形成一个杂环,可选地含有另一个杂原子,例如O,S或N(可选地被烷基取代),或(c)卤原子,三甲基
硅氧基或二烷基
磷酰氧基基团或基团--OSO.sub.2R.sub.3或--OCOR.sub.4,其中R.sub.3为烷基,三
氟甲基,三
氯甲基或可选地取代的苯基,R.sub.4的定义与R.sub.3相同或为酰基烷基,烷氧羰基烷基或烷氧基基团,并且它们的盐及其制备方法。这些产品可用作合成抗菌协同素衍
生物的中间体。