Total Synthesis of a Potent Proinflammatory 5-Oxo-ETE and Its 6,7-Dihydro Biotransformation Product
摘要:
The first total synthesis of a potent inflammatory mediator 5-oxo-6(E),8(Z), 11(Z),14(Z)-eicosatetraenoic acid (5-oxo-ETE) 2 and its biotransformation product 6,7-dihydro-5-oxo-ETE 5 is reported. A convergent synthesis for the unstable title compounds is accomplished via two synthons, dithiolane aldehyde 13 and bisdienyl phosphonium bromide 19. The synthetic 5-oxo-ETE 2 and its 8,9-trans isomer 3 were used to unequivocally confirm the structure of the biologically derived mediators. In addition, using synthetic 6,7-dihydro-5-oxo-ETE 5 we have been able to identify in neutrophils the formation of 6,7-dihydro-5-oxo-ETE 5.
Robbe; Fernandez; Dubief, European Journal of Medicinal Chemistry, 1982, vol. 17, # 3, p. 235 - 243
作者:Robbe、Fernandez、Dubief、et al.
DOI:——
日期:——
Enantioselective organocatalytic aldehyde–aldehyde cross-aldol couplings. The broad utility of α-thioacetal aldehydes
作者:R. Ian Storer、David W.C. MacMillan
DOI:10.1016/j.tet.2004.04.089
日期:2004.8
An asymmetric proline catalyzed aldol reaction with alpha-thioacetal aldehydes has been developed. Thioacetal bearing aldehydes readily participate as electrophilic cross-aldol partners with a broad range of aldehyde and ketone donors. High levels of reaction efficiency as well as diastereo- and enantiocontrol are observed in the production of anti-aldol adducts. (C) 2004 Elsevier Ltd. All rights reserved.