Substitution- and Elimination-Free Phosphorylation of Functionalized Alcohols Catalyzed by Oxidomolybdenum Tetrachloride
作者:Cheng-Yuan Liu、Vijay D. Pawar、Jun-Qi Kao、Chien-Tien Chen
DOI:10.1002/adsc.200900279
日期:2010.1.4
the tested alcohols, oxidomolybdenum tetrachloride (MoOCl4) was found to be the most efficient with a negligible background reaction mediated by triethylamine (Et3N). The new catalytic protocol can be applied to the chemoselective phosphorylations of primary, secondary and tertiary alcohols as well as the substitution‐free phosphorylations of allylic, propargylic, and benzylic alcohols. Functionalized
[EN] HSP90-TARGETING CONJUGATES AND FORMULATIONS THEREOF<br/>[FR] CONJUGUÉS CIBLANT LA HSP90 ET FORMULATIONS ASSOCIÉES
申请人:TARVEDA THERAPEUTICS INC
公开号:WO2019195384A1
公开(公告)日:2019-10-10
Conjugates of an active agent attached to a targeting moiety, such as at least one HSP90 binding moiety, via a linker, have been designed. Such conjugates can provide improved temporospatial delivery of the active agent, improved biodistribution and penetration in tumor, and/or decreased toxicity. Methods of making the conjugates and the formulations thereof are provided. Methods of administering the formulations to a subject in need thereof are provided, for example, to treat or prevent cancer.
An efficient method for the esterification of phosphonic and phosphoric acids using silica chloride
作者:Manisha Sathe、Arvind K. Gupta、M.P. Kaushik
DOI:10.1016/j.tetlet.2006.02.159
日期:2006.5
Silica chloride is used as an effective heterogeneous catalyst for the rapid esterification of alkyl/aryl phosphonic/phosphoric acids to their corresponding alkyl/aryl phosphonates/phosphates under mild conditions with quantitative yields.
[EN] HSP90-BINDING CONJUGATES AND FORMULATIONS THEREOF<br/>[FR] CONJUGUÉS LIÉS À HSP90 ET FORMULATIONS DE CEUX-CI
申请人:TARVEDA THERAPEUTICS INC
公开号:WO2020205948A1
公开(公告)日:2020-10-08
Conjugates of an active agent attached to a targeting moiety, such as at least one HSP90 binding moiety, via a linker, have been designed. Such conjugates can provide improved temporospatial delivery of the active agent, improved biodistribution and penetration in tumor, and/or decreased toxicity. Methods of making the conjugates and the formulations thereof are provided. Methods of administering the formulations to a subject in need thereof are provided, for example, to treat or prevent cancer.
The substitution reactions of diphenyl sec‐alkyl phosphates with Ar2CH anions were swift and proceeded with inversion. In contrast, the diphenyl substituted‐cyclohexyl phosphates proceeded with inversion, but showed different reactivity depending on the relative stereochemistry of the substituent and the (PhO)2PO2 leaving group. The difference in reactivity was rationalized by computational calculation
磷酸二苯基仲烷基磷酸酯与Ar 2 CH阴离子的取代反应迅速进行,并进行了转化。相比之下,二苯基取代的环己基磷酸酯进行了转化,但根据取代基和(PhO)2 PO 2离开基团的相对立体化学,显示出不同的反应性。反应性的差异通过过渡能的计算得到合理化。