Some analogs of luteinizing hormone-releasing hormone with substituents in position 10
作者:Satoe H. Nakagawa、Dai Chang Yang、George Flouret
DOI:10.1021/jm00134a021
日期:1981.2
As part of our studies on the design of agonists of the luteinizing hormone-releasing hormone (LH-RH), we have synthesized the [des-Gly-NH2(10)]-LH-RH N-methylhydrazide (1), the corresponding thiosemicarbazide (2), and the N-formyl- (3) N-acetyl- (4) and N-(trifluoroacetyl)hydrazide (5). Analogue 1 may be regarded as isosteric with [des-Gly-NH2(10)]-LH-RH N-alkylamides which are, in general, potent
作为我们设计黄体生成素释放激素(LH-RH)激动剂的研究的一部分,我们合成了[des-Gly-NH2(10)]-LH-RH N-甲基酰肼(1),硫代氨基脲(2),N-甲酰基-(3),N-乙酰基-(4)和N-(三氟乙酰基)酰肼(5)。类似物1可以被认为与[des-Gly-NH 2(10)]-LH-RH N-烷基酰胺是等排的,它们通常是有效的激动剂。类似物2-5可以被认为与[aza-Gly-NH2(10)]-OH-RH等位,后者与激素等价。通过固相合成制备所需的受保护中间体,并通过用HF脱保护,然后在Sephadex G-25上纯化,由其制备游离肽。这些类似物与大鼠半垂体的体外生物测定显示以下值分别为释放LH和FSH的激素值的百分比:N-甲基酰肼(1),17和11%; N-甲基酰肼(1),17%和11%。氨基硫脲(2),6.5和4.6%; N-甲酰肼(3),15.3和10%;N-乙酰肼(4),1