83550-29-2Relevant academic research and scientific papers
N-acyl peptide, processes for their preparation and pharmaceutical compositions thereof
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, (2008/06/13)
N-acylpeptides are disclosed of the formula: STR1 wherein R1 is alkanoyloxy or alkenoyloxy; R2 is alkyl or alkenyl; R3 and R4 are each lower alkyl, hydroxy(lower)alkyl, ar(lower)alkyl, esterified carboxy(lower)alkyl, carboxy(lower)alkyl, protected amino(lower)alkyl or amino(lower)alkyl; R5 is hydrogen, hydroxy(lower)alkyl, protected amino(lower)alkyl, amino(lower)alkyl, carboxy(lower)alkyl or esterified carboxy(lower)alkyl; R6 is carboxy, esterified carboxy or sulfo(lower)alkyl; A1, A2 and A3 are each bond or lower alkylene; and m and n are each an integer of 0 or 1; or its pharmaceutically acceptable salt. These compounds have anti-complementary activity and fibrinolytic activity, and are useful as therapeutic agents for immune-complex diseases or autoimmune diseases such as nephritis, rheumatic diseases, systemic lupus erythematosus, etc. and thrombosis such as cerebral apoplexy, coronary insufficiency, pulmonary embolism, etc.
N-Acylpeptide compound, processes for the preparation thereof and the pharmaceutical compositions
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, (2008/06/13)
This invention relates to new N-acylpeptide compounds of immunological activity, said compounds being of the formula: EQU1 wherein R1 and R2 are each alkyl or alkenyl; R3 is hydrogen, lower alkyl, hydroxy(lower)alkyl, heterocyclic(lower)alkyl or ar(lower)alkyl, wherein the aryl moiety may have hydroxy or protected hydroxy; R4 is carboxy, esterified carboxy, carboxy(lower)alkyl or esterified carboxy(lower)alkyl; X is bond or lower alkylene; Y is lower alkylene or lower alkylidene; and n is an integer of 0 to 1; or its pharmaceutically acceptable salt.
