Total synthesis of phytotoxic herbarumin-I from d-mannitol
作者:Ahmed Kamal、P. Venkat Reddy、S. Prabhakar
DOI:10.1016/j.tetasy.2009.03.039
日期:2009.6
A simple carbohydrate-based convergent approach towards the totalsynthesis of herbarumin-I, a 10-membered lactone is described. The key features of the synthetic strategy include Grignard reaction and ring-closing metathesis reaction for the formation of the 10-membered ring and E-olefinic moiety. d-Mannitol has been used as a chiral pool material for the construction of the key fragment.
Synthesis of <i>C</i>-Glycoinositols from <i>C</i>-Glycosylcrotylstannanes
作者:Ahmad S. Altiti、David R. Mootoo
DOI:10.1021/acs.joc.8b00845
日期:2018.6.15
A strategy for the synthesis of C-pseudodisaccharides that centers on the reaction of a C-linked crotyltin and a substituted pent-4-enal and a ring-closing metathesis–alkene dihydroxylation sequence on the derived crotylation products is illustrated in the preparation of analogues of the insulin modulatory inositol galactosamine-β-(1 → 4)-3-O-methyl-d-chiro-inositol (β-INS-2). The modularity of this
在类似物的制备中说明了一种合成C-假二糖的策略,该策略以C-连接的巴豆锡和取代的戊-4-烯和闭环易位-烯烃二羟基化序列的反应为中心。胰岛素的调节肌醇半乳糖-β-(1→4)-3-O-甲基- d -手性肌醇(β-INS-2)。这种方法的模块性和关键性crotylation产品的多功能性使其成为C-糖基肌醇的各种文库的潜在通用方法。
(+)-Sorangicin A Synthetic Studies. Construction of the C(1−15) and C(16−29) Subtargets
作者:Amos B. Smith、Richard J. Fox、John A. Vanecko
DOI:10.1021/ol051119l
日期:2005.7.1
[structure: see text] Effective stereocontrolled syntheses of subtargets (-)-2 and (-)-4, comprising respectively the C(16-29) and C(1-15) tetrahydropyran and dihydropyran moieties of the potent antibiotic (+)-sorangicin A (1), have been achieved. The cornerstone for the synthesis of (-)-2 involved an aldol tactic exploiting 1,4-induction, followed in turn by an acid-mediated cyclization/ketalization
作者:Hartmut Redlich、Wilfried Bruns、Wittko Francke、Volker Schurig、Thomas L. Payne、Jean Pierre Vité
DOI:10.1016/s0040-4020(01)86784-3
日期:1987.1
The synthesis of both enantiomers of endo-7-ethyl-5-methyl-6,8-dioxabicyclo[3.2.l]octana (endo-brevicomin, 12 and 12a) starting froni D-ri-bose is described. Key interinediate is the open chain derivative 7, a chiral building unit easily available from carbohydrates. Complexation gas chromatography showed the natural pheromone of males of the southern pine beetle, Dendroctonus frontalis Zimm., to be