DFT studies of the ring-opening mechanism of SB-3CT, a potent inhibitor of matrix metalloproteinase 2.

DFT studies of the ring-opening mechanism of SB-3CT, a potent inhibitor of matrix metalloproteinase 2.
复制标题

DOI:
10.1021/ol9008393
复制
发表时间:
2009-06-18
期刊:
影响因子:
5.2
通讯作者:
Schlegel HB
Schlegel HB
中科院分区:
化学1区
文献类型:
--
作者:
Tao P;Fisher JF;Mobashery S;Schlegel HB

文献摘要

参考文献

被引文献

相似文献

SB-3CT是一种2-[(芳基磺酰基)甲基]硫杂环己烷,通过硫杂环己烷开放机制对MMP2和MMP9锌金属蛋白酶实现了有效的抑制。以乙酸乙酯阴离子为Brnsted碱,甲醇和乙腈为溶剂,计算研究了Sb-3CT硫烷开环及其环氧烷类似物开环的去质子化机理。该反应的活化势垒表现出明显的立体电子效应。能量最低的路径是两个砜氧的C-H键断裂,且该C-H键与硫杂环的C-S键断裂相反。计算的初级同位素效应与实验数据符合较好。
SB-3CT is a 2-[(arylsulfonyl)methyl]thiirane that achieves potent inhibition, by a thiirane-opening mechanism, of the MMP2 and MMP9 zinc metalloproteases. The deprotonation mechanism for thiirane opening of SB-3CT and for the opening of its oxirane analog, both relevant to the inhibition of MMP2, were investigated computationally using acetate anion as the Brønsted base and in methanol and acetonitrile as solvents. The activation barriers for the reaction show a significant stereoelectronic effect. The lowest energy paths have the breaking C–H bond gauche to both sulfone oxygens, and with this C-H bond anti to the breaking C–S bond of the thiirane. The calculated primary isotope effect agrees with experimental data.
DOI: 10.1063/1.481224
发表时间: 2000-04-15
影响因子: 4.4
作者:
Montgomery, JA;Frisch, MJ;Petersson, GA
通讯作者: Petersson, GA
DOI: 10.1063/1.464913
发表时间: 1993-04-01
影响因子: 4.4
作者:
BECKE, AD
通讯作者: BECKE, AD
DOI: 10.1074/jbc.m011604200
发表时间: 2001-05-18
影响因子: 4.8
作者:
Kleifeld, O;Kotra, LP;Sagi, I
通讯作者: Sagi, I
DOI: 10.2174/0929867013372805
发表时间: 2001-07-01
影响因子: 4.1
作者:
Kim, DH;Mobashery, S
通讯作者: Mobashery, S