[PDF] Top 20 STUDIES DIRECTED TOWARDS TOTAL SYNTHESIS OF CONSTANOLACTONE A, B AND DEVELOPMENT OF NOVEL SYNTHETIC METHODOLOGIES

... Aziridines are versatile synthetic intermediates for the synthesis of many biologically interesting molecules such as amino acids, heterocycles and alkaloids. They are well known carbon electrophiles. They ... See full document

... Consequently, several methods have been developed for the allylation of aldehydes with allyl metals including Lewis, Bronsted acid and organ metallic reagent catalyzed allylation reactions in organic and aqueous media, ... See full document

... The peroxisome proliferator-activated receptors (PPARs) are the nuclear hormone receptors and they are activated by specific ligands. PPARγ is said to be potential target for the treatment of type II diabetes, ... See full document

... Eicosanoids, the arachidonic acid derived substances are of fundamental importance in maintaining normal physiological conditions, a process known as " homeostasis " in mammalian systems. Eicosanoids are ... See full document

... evolutionary development has equipped many marine organisms with the appropriate mechanisms to survive in a hostile milieu in terms of extreme temperatures, changes in salinity and pressure, as well as overcoming ... See full document

... 1 b & 1 f also reacted equally well with aromatic aldehydes 2a & 2c and alkynes 3a, 3b & 3c to afford the corresponding quinolines 4b, 4d, 4i & 4l in high ... See full document

... of synthesis or the preparation of the substance by chemical ...the synthesis of that ...the synthetic compound will be less expensive or more easily accessible than the natural ... See full document

... & B (Fig 1) are marine natural products, which were isolated in1999 from the Chinese bivalve Pinna attenuata by Uemura and ...biological studies of Attenol A and Attenol B exhibited moderate ... See full document

... "Studies Directed Towards the Total Synthesis of (+)- Discodermolide" is divided into ...earlier synthetic approaches and biological importance of ...SECTION B: ... See full document

... the synthesis of the trans-2,3-dihydrobenzofuran derivatives through [3+2] cycloaddition of 1,4-benzoquinones with electron rich ...the synthesis of biologically important neolignins incorporating ... See full document

... a novel Lewis acid catalyst for the allylation and cyanation of aldehydes with allyltrimethylsilane and trimethylsilyl cyanide to produce allylic acetates and α-cyano acetates (Table 1) in excellent yields under ... See full document

... successful synthesis of a complex molecule depends upon the analysis of the problem to develop feasible scheme of synthesis generally consisting of a pathway of synthetic intermediates connected by ... See full document

... a novel member of the annonaceous acetogenin family of natural products, was isolated in 1997 by McLaugh-lin and co-workers from the stem bark of the Goniothalamusgiganteus tree native to ... See full document

... the synthesis of 27, the studies were next aimed at the synthesis of C15-C30 ...retro synthetic plan (Scheme 11), fragment 37 could be made by coupling of two sub fragments 38 and 39, while, ... See full document

... The introduction of cyclobutane derivatives, as molecular building blocks in the synthesis of highly complex compounds has gained increasing importance in the last decades. This is mainly because cyclobutane ... See full document

... cytotoxicity towards mammalian cells, thus providing an attractive tool for studying cell motility and metastasis, and a potential lead structure to develop new anticancer ...convergent total ... See full document

... the synthesis of many oxygenated ...the synthesis of fused tetrahydropyrano [3,2- c] benzopyrans involving intramolecular (4+2) cycloaddition of o- ... See full document

... Cleavage of the 1, 2 isopropylidene acetal of 38 in refluxing 30 % aq AcOH provided the lactol 39, which was subjected to oxidative cleavage in CH 2 Cl 2 using sodium periodate furnishe[r] ... See full document

... with total synthesis of (-) varitriol and aromatic metabolite RKB ...the development of new synthetic processes for molecules of biological significance such as the sucralose (artificial ... See full document

... toxicity towards several cancer cell lines (A549 human lung adenocarcinoma, NCI/ADR-RES ovarian carcinoma and P388 murine leukemia cell lines) with excellent IC 50 values of ... See full document