1,1-Bisphosphonate Squalene Synthase Inhibitors: Interplay Between the Isoprenoid Subunit and the Diphosphate Surrogate
作者:David R. Magnin、John K. Dickson、Janette V. Logan、R. Michael Lawrence、Ying Chen、Richard B. Sulsky、Carl P. Ciosek、Scott A. Biller、Thomas W. Harrity、Kern G. Jolibois、Lori K. Kunselman、Lois C. Rich、Dorothy A. Slusarchyk
DOI:10.1021/jm00014a012
日期:1995.7
Inhibitors of squalenesynthase have the potential to be superior cholesterol-lowering agents. We previously disclosed that lipophilic 1,1-bisphosphonates I are potent squalenesynthaseinhibitors and orallyactive cholesterol-lowering agents in animal models (Ciosek, C. P., Jr.; et al. J. Biol. Chem. 1993, 268, 24832-24837). In this paper, we describe modifications to the bisphosphonate moiety, in
角鲨烯合酶的抑制剂有可能成为优异的降胆固醇药。我们先前曾披露亲脂性1,1-双膦酸酯I在动物模型中是有效的角鲨烯合酶抑制剂和口服活性降胆固醇剂(Ciosek,CP,Jr .; et al.J.Biol.Chem.1993,268,24832-24837 )。在本文中,我们描述了对双膦酸酯部分的修饰,以尝试减少这些抑制剂中所含的酸性功能。当与自然存在的法呢基部分的近似模拟物配对时(R1 =法呢基乙基),而与较短的异戊二烯替代物配对时(R1 =香叶基乙基),用甲基(II,R2 = CH3)取代一个酸性基团会产生有效的抑制剂或4-联苯丙基)。相反,所有三种相应的双膦酸酯I都是有效的角鲨烯合酶抑制剂。当R2为CH2OH或CH2OCH3时,用较短的异戊二烯替代物可恢复抑制能力。提出这些R 2基团充当酶的活性位点的氢键受体。描述了这些化合物在大鼠中作为胆固醇生物合成抑制剂的特性,并详细说明了这些化合物和相关化合物的合成途径。
Synthesis of pyrophosphonic acid analogues of farnesyl pyrophosphate
作者:A.R.P.M. Valentijn、O. van den Berg、G.A. van der Marel、L.H. Cohen、J.H. van Boom
DOI:10.1016/0040-4020(94)01083-c
日期:1995.2
The synthesis of four new analogues (i.e.3–6) of farnesylpyrophosphate (FPP), which may function as inhibitor of squalene synthase, is described. Compounds 3 and 4 were readily accessible by reaction of farnesal with diethyl phosphite or dimethyl lithiomethylphosphonate, respectively, followed by condensation of the resulting alcohols with diethyl phosphonomethyl triflate. The preparation of 5 and
The invention provides novel pyrophosphate synthase inhibitors of formula I as well as compositions comprising such inhibitors and methods for their use.
Synthesis and biological activity of isoprenoid bisphosphonates
作者:Larry W. Shull、Andrew J. Wiemer、Raymond J. Hohl、David F. Wiemer
DOI:10.1016/j.bmc.2006.02.010
日期:2006.6
Bisphosphonates have been used in the clinic to treat osteoporosis and to reduce bone resorption and the accompanying pathological bone fractures that attend a number of malignancies including multiple myeloma and cancers of the prostate, breast, and lung. There is also evidence that some bisphosphonates have direct anticancer activity. Expansion of the current class of bisphosphonates may lead to compounds that more selectively and potently target these cancers through inhibition of the mevalonate pathway. To this end, a set of dialkyl bisphosphonates bearing isoprenoid chains of varying lengths has been synthesized. Some of these compounds were found to have biological activity on post-translational processing of the oncogenic small GTPases, Ras and Rapla, in human-derived K562 leukemia cells. Most importantly, these compounds impair protein geranylgeranylation and not protein farnesylation. (c) 2006 Elsevier Ltd. All rights reserved.