Drug – bio-affecting and body treating compositions – Immunoglobulin – antiserum – antibody – or antibody fragment,... – Reduced antigenicity – reduced ability to bind complement – or...
Patent
1982-06-07
1984-03-27
Phillips, Delbert R.
Drug, bio-affecting and body treating compositions
Immunoglobulin, antiserum, antibody, or antibody fragment,...
Reduced antigenicity, reduced ability to bind complement, or...
A61K 3700
Patent
active
044394250
ABSTRACT:
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).
REFERENCES:
Cellular Immunology 37, 174-187, (1978).
Infection and Immunity, (1978), 40-49, vol. 20.
Eur. J. Biochem. 34, (1973), 284-296.
Z. Immun-Forsch., vol. 153, 11-22, (1977).
Baschang Gerhard
Hartmann Albert
Kamber Bruno
Stanek Jaroslav
Tarcsay Lajos
Ciba-Geigy Corporation
Feit Irving N.
Phillips Delbert R.
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