This disclosure describes certain 11-hydroxy and 11-deoxy-9-keto(or hydroxy)-prostanoic acid derivatives useful as bronchodilators, hypotensive agents, anti-ulcer agents, or as intermediates.
Thiol-Activated DNA Damage by α-Bromo-2-cyclopentenone
作者:Mostafa I. Fekry、Nathan E. Price、Hong Zang、Chaofeng Huang、Michael Harmata、Paul Brown、J. Scott Daniels、Kent S. Gates
DOI:10.1021/tx100282b
日期:2011.2.18
of bromide to yield a DNA-alkylating episulfoniumionintermediate. The reaction of thiol-activated 1 with DNA produces labile lesions at deoxyguanosine residues. The sequence specificity and salt dependence of this process is consistent with involvement of an episulfoniumionintermediate. The alkylated guanine residue resulting from the thiol-triggered reaction of 1 with duplex DNA was characterized
Vinyl esters as ethylene equivalents in the Khand annulation reaction
作者:William J. Kerr、Mark McLaughlin、Peter L. Pauson、Sarah M. Robertson
DOI:10.1039/a906660h
日期:——
A preparatively convenient and mild method for modified Khand cycloadditions is described; vinyl esters are employed as the olefinic reaction partner to provide cyclopentenone products more normally obtained with ethylene.
This disclosure describes 3-triphenylmethoxy-1-alkynes, 3-triphenylmethoxy-1-trans-alkenyl-dialkyl-alanes, and lithium 3-triphenylmethoxy-1-trans-alkenyl-dialkyl alanates useful as intermediates for the preparation of certain 11-hydroxy- and 11-deoxy-9-keto(or hydroxy)-prostanoic acid derivatives which possess bronchodilator, hypotensive, and anti-ulcer activity.