Efficient synthesis of (−)- and (+)-tricyclic compounds with enone functionalities in rings A and C. A novel class of orally active anti-inflammatory and cancer chemopreventive agents
作者:Tadashi Honda、Frank G. Favaloro, Jr.、Tomasz Janosik、Yukiko Honda、Nanjoo Suh、Michael B. Sporn、Gordon W. Gribble
DOI:10.1039/b307491a
日期:——
desired to synthesize optically active TBE compounds for a comparison of the biological potency of both enantiomers. We now describe the synthesis of both enantiomers of (4a[small beta],8a[small beta],10a[small alpha])-1,2,4a,6,8a,9,10,10a-octahydro-1,1,4a,8a-tetramethyl-2,6-dioxophenanthren e-3-carbonitrile (2) and 3 from commercially available simple compounds. Interestingly, (+)-3 having the same
根据合成的三萜类化合物2-氰基-3,12-二氧代油酸酯-1,9(11)的结构设计了在环A和环C具有烯酮官能团的新型三环化合物[三环-双-烯酮(TBE)化合物]。 )-二烯-28-油酸(CDDO)(1),它是预防和/或治疗癌症和炎症性疾病的有前途的候选药物,其发病机理可能涉及一氧化氮(NO)和/或前列腺素的过量生产。一系列外消旋形式的TBE化合物显示出对小鼠巨噬细胞中干扰素-γ(IFN-γ)诱导的NO产生的高抑制活性。这些化合物之一,(+/-)-(4a [小β,8a [小β,10a [小α])-1,2,4a,6,8a,9,10,10a-八氢-1 ,1,4a,8a-tetramethyl-2,6-dioxophenanthren e-3,7-dicarbonitrile((+/-)-3),在一项初步研究中,使用硫代乙醇酸酯和IFN-γ诱导的小鼠腹膜炎症,口服活性为15 mg kg(-1)(单次