申请人:Sankyo Company Limited
公开号:US04010149A1
公开(公告)日:1977-03-01
Peptides having the formula N-Acetyl-N-methylglycyl-L-histidyl-L-tryptophyl-L-seryl-L-tyrosyl-Y-L-leucy l-L-arginyl-L-prolyl-Z wherein Y is a D-.alpha.-alkylglycine residue of the formula ##STR1## in which n is an integer of 0 through 3 inclusive and Z is ethylamino group or an ethylamino group which is substituted with 1 to 3 fluorine atoms at the 2-position and pharmaceutically acceptable salts thereof. They show luteinizing hormone-releasing hormone like activities and are prepared by reacting L-histidyl-L-tryptophyl-L-seryl(or L-seryl having a protected hydroxyl group)-L-tyrosyl(or L-tyrosyl having a protected hydroxyl group)-Y-L-leucyl-L-arginyl(or L-arginyl having a protected guanidyl group)-L-prolyl-Z wherein Y and Z are as defined above with a reactive derivative of N-Acetyl-N-methylglycine And, if a protective group is attached, then removing the protective group, and, if necessary, converting further the resultant into an acid addition salt thereof in the usual manner.
具有以下式子的肽类物质N-Acetyl-N-methylglycyl-L-histidyl-L-tryptophyl-L-seryl-L-tyrosyl-Y-L-leucy l-L-arginyl-L-prolyl-Z,其中Y为式子##STR1##的D-.alpha.-烷基甘氨酸残基,其中n为0到3的整数,Z为乙基氨基或在2-位上被1到3个氟原子取代的乙基氨基,并且其药学上可接受的盐。它们表现出促黄体激素释放激素类似的活性,并通过将L-组氨酸-L-色氨酸-L-丝氨酸(或具有保护羟基的L-丝氨酸)-L-酪氨酸(或具有保护羟基的L-酪氨酸)-Y-L-亮氨酸-L-精氨酸(或具有保护胍基的L-精氨酸)-L-脯氨酸-Z(其中Y和Z如上所定义)与N-Acetyl-N-methylglycine的反应衍生物制备,如果附加了保护基,则去除保护基,并在必要时将其进一步转化为其酸加合盐。