Development of a genetic selection for catalytic antibodies
作者:Jeff Gildersleeve、Jeff Janes、Helle Ulrich、Priscilla Yang、Carlos Barbas、Peter G. Schultz
DOI:10.1016/s0960-894x(02)00198-1
日期:2002.6
The design and evaluation of a new genetic selection system for evolving catalytic antibodies with aldolase activity are described. Through a series of model selections, we have identified selection conditions where expression of a catalytically active antibody confers a growth advantage to Escherichia coli. In addition, we provide evidence that the growth advantage is a direct result of catalytic activity. (C) 2002 Published by Elsevier Science Ltd.
Studies toward the duocarmycin prodrugs for the antibody prodrug therapy approach
作者:Lian-Sheng Li、Subhash C. Sinha
DOI:10.1016/j.tetlet.2009.03.205
日期:2009.6
prodrugs of pro-1,2,9,9a-tetrahydrocyclopropa[c]benz-[e]indole-4-one tetramethoxyindolecarboxamide (CBI-TMI) was prepared using the ring-closingmetathesisapproach. The tricyclic intermediate was converted to an advanced precursor of a CBI-TMI prodrug equipped with a linker presumably suitable for activation using the aldolase catalytic antibody 38C2. An attempted 38C2-catalyzed two-step activation of
使用闭环复分解方法制备了用于合成pro -1,2,9,9a-四氢环丙 [ c ]benz-[ e ]indole-4-one 四甲氧基吲哚甲酰胺(CBI-TMI)前药的三环前体。三环中间体被转化为 CBI-TMI 前药的高级前体,该前药配备有可能适合使用醛缩酶催化抗体 38C2 激活的接头。企图的羟基38C2催化两步活化亲-CBI中间涉及复古-aldol和β消除反应还检查。
Intramolecular Reactions of Hydroperoxides and Oxetanes: Stereoselective Synthesis of 1,2-Dioxolanes and 1,2-Dioxanes
作者:Peng Dai、Patrick H. Dussault
DOI:10.1021/ol051407h
日期:2005.9.1
[reactions: see text] The 5-exo openings of oxetanes by hydroperoxides proceed rapidly and stereospecifically to furnish 1,2-dioxolanes. The corresponding 6-exo cyclizations are slower and proceed with moderate stereoselectivity. In the case of hydroperoxy acetals, 5-exo nucleophilic transfer of alkoxide competes effectively with 6-exo attack by the hydroperoxide.