Acortatarins A and B have been synthesized via stereoselective spirocyclizations of glycals. Mercury-mediated spirocyclization of a pyrrole monoalcohol side chain leads to acortatarin A. Glycal epoxidation and reductive spirocyclization of a pyrrole dialdehyde side chain leads to acortatarin B. Acid equilibration and crystallographic analysis indicate that acortatarin B is a contrathermodynamic spiroketal with distinct ring conformations compared to acortatarin A.
作者:Jacqueline M. Wurst、Alyssa L. Verano、Derek S. Tan
DOI:10.1021/ol3019456
日期:2012.9.7
Acortatarins A and B have been synthesized via stereoselective spirocyclizations of glycals. Mercury-mediated spirocyclization of a pyrrole monoalcohol side chain leads to acortatarin A. Glycal epoxidation and reductive spirocyclization of a pyrrole dialdehyde side chain leads to acortatarin B. Acid equilibration and crystallographic analysis indicate that acortatarin B is a contrathermodynamic spiroketal with distinct ring conformations compared to acortatarin A.
[EN] SPIROKETALS AND USES THEREOF<br/>[FR] SPIROCÉTALS ET LEURS UTILISATIONS
申请人:MEMORIAL SLOAN KETTERING CANCER CENTER
公开号:WO2018175844A1
公开(公告)日:2018-09-27
The invention relates to novel spiroketal antioxidants, including compounds of Formula (I) and (II). The compounds have antioxidant properties and are useful for the treatment and/or prevention of diseases and conditions associated with oxidative stress in the body (e.g., metabolic conditions, neurodegenerative diseases, cardiovascular diseases, inflammatory diseases, autoimmune diseases, proliferative diseases, renal diseases). The invention provides pharmaceutical compositions comprising the compounds, and kits comprising the same. Additionally, the invention provides uses of the compounds described herein (e.g., for inhibiting the concentration or production of reactive oxygen species (ROS), inhibiting the concentration or production of reactive nitrogen species (RNS), reducing oxidative stress, inhibiting NADPH oxidase activity, and for slowing or reducing the effects of aging).