Inhibition of bovine plasma amine oxidase by 1,4-diamino-2-butenes and -2-butynes
作者:Heung-Bae Jeon、Younghee Lee、Chunhua Qiao、He Huang、Lawrence M Sayre
DOI:10.1016/s0968-0896(03)00521-2
日期:2003.10
The finding that the bis-primary amines 1,4-diamino-2-butyne (a known potent inhibitor of diamine oxidases) and Z-2-chloro-1,4-diamino-2-butene are potent inactivators of BPAO is suggestive of unexpected similarities between plasma amine oxidase and the diamine oxidases and implies that it may be unwise to attempt to develop selective inhibitors of diamine oxidase using a diamine construct.
牛血浆胺氧化酶(BPAO)先前已显示被炔丙基胺和2-氯烯丙基胺不可逆地抑制。这两种化合物的1,4-二胺版本在此处显示为高效灭活剂,IC50值接近20 microM。在每种情况下,单-N-烷基化或N,N-二烷基化都会大大降低失活能力,而单-N-酰基衍生物也是较弱的抑制剂,酶活性可以恢复。双伯胺1,4-二氨基-2-丁炔(一种已知的二胺氧化酶的有效抑制剂)和Z-2-氯-1,4-二氨基-2-丁烯是BPAO的有效灭活剂的发现提示:血浆胺氧化酶和二胺氧化酶之间出乎意料的相似性,这意味着尝试使用二胺构建物开发选择性的二胺氧化酶抑制剂可能是不明智的。