Methods and compositions for destruction of selected proteins
申请人:Sloan-Kettering Institute for Cancer Research
公开号:US06670348B1
公开(公告)日:2003-12-30
Compounds having an ansamycin anitibiotic, or other moiety which binds to hsp90, coupled to a targeting moiety which binds specifically to a protein, receptor or marker can provide effective targeted delivery of the ansamycin antibiotic leading to the degradation of proteins and death of the targeted cells. These compositions may have different specificity than the ansamycin alone, allowing for a more specific targeting of the therapy, and can be effective in instances where the ansamycin alone has no effect. Thus, these compounds provide an entirely new class of targeted chemotherapy agents with application, depending on the nature of the targeting moiety, to treatment of a variety of different forms of cancer. Such agents can further be used to promote selective degradation of proteins associated with the pathogenesis of others diseases, including antigens associated with autoimmune disorders and pathogenic proteins associated with Alzheimer's disease. Exemplary targeting moieties which may be employed in compounds of the invention include testosterone, estradiol, tamoxifen and wortmannin.
Process for preparing guggulsterones and guggulsterol
申请人:Kang Heonjoong
公开号:US20070055072A1
公开(公告)日:2007-03-08
The present invention relates to a method for selective preparing 4,17 (20)-E-pregnadiene-3,16-dione (E-guggul-sterone) of the formula (III) and 4,17 (20)-Z-pregnadiene-3,16-dione (Z-guggulsterone) of the formula (IV) having an effect of lowering the elevated low density lipoprotein (LDL) and high levels of the cholesterol effectively, and elevating the low levels of the high density lipoprotein (HDL) from a easy-available steroid of the following formula (I). Also, the present invention provides a method for preparation of the compound of the above formula (II).
A new procedure for the one-carbon homologation of ketones to .alpha.-hydroxy aldehydes
作者:Maciej Adamczyk、E. Kurt Dolence、David S. Watt、M. Robert Christy、Joseph H. Reibenspies、Oren P. Anderson
DOI:10.1021/jo00182a012
日期:1984.4
PROCESS FOR PREPARING GUGGULSTERONES AND GUGGULSTEROL
申请人:Seoul National University Industry Foundation
公开号:EP1620455B1
公开(公告)日:2011-11-30
[EN] PROCESS FOR PREPARING GUGGULSTERONES AND GUGGULSTEROL<br/>[FR] PROCEDE DE PREPARATION DE GUGGULSTERONES ET DE GUGGULSTEROLS
申请人:KANG HEONJOONG
公开号:WO2004094450A1
公开(公告)日:2004-11-04
The present invention relates to a method for selective preparing 4,17 (20)-E-pregnadiene-3,16-dione (E-guggulsterone) of the formula (III) and 4,17 (20)-Z-pregnadiene-3,16-dione (Z-guggulsterone) of the formula (IV) having an effect of lowering the elevated low density lipoprotein (LDL) and high levels of the cholesterol effectively, and elevating the low levels of the high density lipoprotein (HDL) from a easy-available steroid of the following formula (I). Also, the present invention provides a method for preparation of the compound of the above formula (II).