申请人:Ciba-Geigy Corporation
公开号:US04439425A1
公开(公告)日:1984-03-27
The present invention relates to new lipopeptides and in particular to compounds of either of the formulae ##STR1## wherein R.sub.1 and R.sub.2 each represent a saturated or unsaturated aliphatic or mixed aliphatic-cycloaliphatic hydrocarbon radical which has 11-21 C atoms and which is also optionally substituted by oxygen functions, R.sub.3 represents hydrogen or the radical R.sub.1 --CO--O--CH.sub.2 --, where R.sub.1 has the same meaning, R.sub.1 ' is a saturated or unsaturated aliphatic hydrocarbon radical of at least 9 C atoms, which is optionally substituted at one of the C atoms non adjacent to the sulfur atom by a free hydroxyl group or a hydroxyl group esterified with a monobasic carboxylic acid and which is optionally interrupted in the C atoms chain by one or more oxygen atoms, and which hydrocarbon is optionally substituted by a maximum of 2 cycloaliphatic hydrocarbon radicals having 5-8 ring C atoms, or R.sub.1 ' is the radical --CO--R.sub.1 ", wherein R.sub.1 " represents a saturated or unsaturated aliphatic or mixed aliphatic-cycloaliphatic hydrocarbon radical of 11-21 C-atoms and which is optionally interrupted in the C atoms chain by oxygen atoms, and X represents an amino acid with free esterified or amidated carboxyl group, or an amino acid sequence of 2-10 aliphatic amino acids, the terminal carboxyl group of which is free or in the ester or amide form, the amino acids being naturals ones in the case of compounds of formula (1).
本发明涉及新的脂肽类化合物,特别是公式中的任一化合物:##STR1##其中,R.sub.1和R.sub.2分别表示具有11-21个C原子的饱和或不饱和的脂肪族或混合脂环族烃基,也可以通过氧原子进行取代;R.sub.3表示氢或基团R.sub.1--CO--O--CH.sub.2--,其中R.sub.1具有相同的含义;R.sub.1'是至少具有9个C原子的饱和或不饱和的脂肪族烃基,其中可以在不与硫原子相邻的C原子中的一个上取代为自由羟基或羟基,该烃基可以在C原子链中通过一个或多个氧原子进行中断,并且该烃基可以通过最多2个具有5-8个环C原子的脂环族烃基进行取代;或者R.sub.1'是基团--CO--R.sub.1",其中R.sub.1"表示具有11-21个C原子的饱和或不饱和的脂肪族或混合脂环族烃基,并且可以在C原子链中通过氧原子进行中断;X表示具有自由酯化或酰化羧基的氨基酸,或者是2-10个脂肪族氨基酸的氨基酸序列,其末端羧基是自由的或以酯或酰胺形式存在,其中在公式(1)化合物的情况下,氨基酸是天然的。