Total synthesis of the ethanol inducible, proinflammatory autacoid 3(S)-hydroxy-leukotriene B4 (3-OH-LTB4) and analogues
摘要:
3(S)-Hydroxy-Leukotriene B-4 (1a), its 3(R)-epimer 1b, and a 14,15-acetylenic analogue were efficiently prepared via chelation-controlled reduction of ketone 12, obtained by acetylide addition to chiral beta-hydroxylactones 7/9.
Total synthesis of the ethanol inducible, proinflammatory autacoid 3(S)-hydroxy-leukotriene B4 (3-OH-LTB4) and analogues
摘要:
3(S)-Hydroxy-Leukotriene B-4 (1a), its 3(R)-epimer 1b, and a 14,15-acetylenic analogue were efficiently prepared via chelation-controlled reduction of ketone 12, obtained by acetylide addition to chiral beta-hydroxylactones 7/9.
Toward the total synthesis of lophotoxin — New methodologies and synthetic strategies
作者:Peter Wipf、Michel Grenon
DOI:10.1139/v06-073
日期:2006.10.1
progress toward the synthesis of the furanocembranolide lophotoxin (1) is disclosed. Strategies for the stereoselective incorporation of the C13 stereocenter by a catalytic desymmetrization of a cyclic meso-anhydride, as well as a novel 1,6-addition reaction of organocuprates to unsaturated [1,3]dioxin-4-ones are discussed. Preliminary results on the development of a rhodium-catalyzed asymmetric 1,6-addition