Studies aimed at elucidating factors involved in the control of chemoselectivity in single electron transfer promoted photoreactions of branched-polydonor substituted phthalimides
作者:Dae Won Cho、Chunsheng Quan、Hea Jung Park、Jung Hei Choi、Su Rhan Kim、Tae Gyung Hyung、Ung Chan Yoon、Sung Hong Kim、Ying Xue Jin、Patrick S. Mariano
DOI:10.1016/j.tet.2010.02.074
日期:2010.4
explored. The results of this effort have led to the identification of several key factors that govern the chemoselectivities and efficiencies of the competitive reaction pathways followed. The observations suggest that the length and nature of the chain linking the phthalimide acceptor and α-silyl donor sites are important factors in controlling the rates of formation of zwitterionic biradicals that serve
Applications of Phthalimide Photochemistry to Macrocyclic Polyether, Polythioether, and Polyamide Synthesis
作者:Ung Chan Yoon、Sun Wha Oh、Jae Ho Lee、Jong Hoon Park、Kyung Tae Kang、Patrick S. Mariano
DOI:10.1021/jo001457u
日期:2001.2.1
polythioether, and polysulfonamide products. These photocyclization reactions follow sequential single electron transfer (SET)-desilylation pathways. Only in the cases of phthalimides, bearing mixed ether-thioether N-substituents, do these excited-state cyclization reactions proceed with lower degrees of regioselectivity. This is a result of competitive desilylation and alpha-to-sulfur deprotonation reactions
[EN] RAPAMYCIN ANALOGS AS ANTI-CANCER AGENTS<br/>[FR] ANALOGUES DE RAPAMYCINE EN TANT QU'AGENTS ANTI-CANCÉREUX
申请人:PONIARD PHARMACEUTICALS INC
公开号:WO2009131631A1
公开(公告)日:2009-10-29
Analogs and derivatives of rapamycin are provided, wherein the analogs and derivatives can bind to FK-506 binding protein (FKBP), or inhibit the mTOR function of an FKBP, or both. The analogs and derivatives are rapamycin include the rapamycin skeleton substituted at the 42-hydroxyl group with certain specified chemically feasible groups. Methods of using the rapamycin analogs and derivatives in treatment of malconditions such as cancer, and methods of synthesizing the rapamycin analogs and derivatives, are provided.
Analogs and derivatives of rapamycin are provided, wherein the analogs and derivatives can bind to FK-506 binding protein (FKBP), or inhibit the mTOR function of an FKBP, or both. The analogs and derivatives are rapamycin include the rapamycin skeleton substituted at the 42-hydroxyl group with certain specified chemically feasible groups. Methods of using the rapamycin analogs and derivatives in treatment of malconditions such as cancer, and methods of synthesizing the rapamycin analogs and derivatives, are provided.