申请人:SPOFA, spojene podniky pro zdravotnickou vyrobu
公开号:US04528133A1
公开(公告)日:1985-07-09
This invention relates to biologically active tripeptide and tetrapeptide alkylamides of the general formula ##STR1## wherein R.sup.1 is an alkyl with 1 to 5 carbon atoms, A is a peptidically bound alanine or proline residue, B is a peptidically bound glycine, alanine or proline residue, n is an integer of 1 or 2, and R.sup.2 is an alkylcarbonylamino group with 2 to 12 carbon atoms, an alkenyl with 6 to 12 carbon atoms or a benzyloxycarbonylamino group. The compounds effectively inhibit the enzymatic activity of pancreatic and leucocytal elastase and are expected to find use in the treatment of acute pancreatitis, chronic obstructive pulmonary disease, pulmonary emphysema, and certain forms of arthritis. The invention also relates to processes for the preparation of the title compounds and to pharmaceutical compositions containing them.
本发明涉及一种具有生物活性的三肽和四肽烷基酰胺,其一般式为##STR1##
其中,R1是1至5个碳原子的烷基,A是肽键连接的丙氨酸或脯氨酸残基,B是肽键连接的甘氨酸、丙氨酸或脯氨酸残基,n是1或2的整数,R2是具有2至12个碳原子的烷基羰基氨基、具有6至12个碳原子的烯烃基或苄氧羰基氨基。这些化合物有效地抑制胰腺和白细胞弹性蛋白酶的酶活性,并预计用于治疗急性胰腺炎、慢性阻塞性肺疾病、肺气肿和某些形式的关节炎。本发明还涉及制备所述化合物的方法和含有它们的制药组合物。