Synthesis of glutamic acid and glutamine peptides possessing a trifluoromethyl ketone group as SARS-CoV 3CL protease inhibitors
作者:Magne O. Sydnes、Yoshio Hayashi、Vinay K. Sharma、Takashi Hamada、Usman Bacha、Jennifer Barrila、Ernesto Freire、Yoshiaki Kiso
DOI:10.1016/j.tet.2006.06.052
日期:2006.9
ether 8 [(4S,5S)-benzyl 4-(2-(tert-butoxycarbonyl)ethyl)-5-(trifluoromethyl)-5-(trimethylsilyloxy)oxazolidine-3-carboxylate]. Compound 11 was then converted into four tri- and tetra-glutamic acid and glutamine peptides (1–4) possessing a CF3-ketone group that exhibited inhibitory activity against severe acute respiratory syndrome coronavirus protease (SARS-CoV 3CLpro).
三氟甲基-β-氨基醇11 [(4 S )- 4-氨基-6,6,6-三氟-5-羟基己酸叔丁酯] 从 Cbz-l-Glu-OH 5开始分五步合成,其中关键步骤涉及将三氟甲基 (CF 3 ) 基团引入恶唑烷酮7,导致形成甲硅烷基醚8 [(4 S ,5 S )-苄基 4-(2-(叔丁氧基羰基)乙基)-5-(三氟甲基)-5-(三甲基甲硅烷氧基)恶唑烷-3-羧酸盐]。然后将化合物11转化为四种三谷氨酸和四谷氨酸和谷氨酰胺肽 ( 1 – 4) 具有 CF 3 -酮基,对严重急性呼吸综合征冠状病毒蛋白酶 (SARS-CoV 3CL pro ) 具有抑制活性。