total synthesis of polysaccharide sulfates
synthetic studies toward the total synthesis of amphidinolide b1
Ngày tải lên: 14/11/2014, 09:37
Tandem isomerization reaction of alkyne total synthesis of alpha yohimbine
... the total synthesis of esperamicin A Scheme 1.3.12 IMDA reaction of vinylallene toward the total synthesis of cis-Dehydrofukinone Scheme 1.3.13 IMDA reaction of vinylallene toward the total synthesis ... isomerization of alkynes to allenes Scheme 3.1.1 Total synthesis of alpha- yohimbine, route1 Scheme 3.1.2 Total synthesis of alpha- yohimbine, route Scheme 3.1.3 Total synthesis of alpha- yohimbine, ... the total 21 Introduction synthesis of (+)-compactin One of these compounds matched the spectral data of 97 exactly Scheme 1.3.13 IMDA reaction of vinylallene toward the total synthesis of (+)-Compactin...
Ngày tải lên: 09/09/2015, 17:56
Total synthesis of the potent antibiotic platensimycin
... Preparation of the C6-methoxy analog (5-60) of (-)- 286 platensimycin Scheme 5.10 Completion of the total synthesis of (-)-platensimycin 287 Scheme 5.11 Preparation of the TFA salt of amino di-tert-butyl ... Background of Antibacterial Resistance 1.2 Discovery of Platensimycin 1.3 Unique Mode of Antibacterial Action 1.4 Biosynthesis of Platensimycin 10 1.5 Nicolaou’s Syntheses of Platensimycin 13 1.6 Total ... 5-3 246 Scheme 5.3 Synthesis of (-)-dienone 4-1 via the bromo lactol 5-11 250 Scheme 5.4 Synthesis of the TFA salts of amino acid tert-butyl 267 esters Scheme 5.5 Synthesis of the alkyl 6-methoxyplatensinoates...
Ngày tải lên: 10/09/2015, 08:39
Affinity guided isolation, structure elucidation and total synthesis of laetirobin a and its analogue synthesis for therapeutic development 1 4
... mmol) in 15 mL of chloroform After h, the reaction was quenched by addition of a saturated solution of sodium bicarbonate The aqueous layer was extracted three times with 20 mL of chloroform The combined ... on the theoretical yield of the previous reaction Tert-alcohol 5-24 (26.0 mg, 0.084 mmol) was dissolved in 10 mL of a mixture of 5% of MeOH in DCM Subsequently, 0.1 mL of 1M aqueous HCl was added ... to a stirring solution of acetyl protected phenol 5-31 (400 mg, 1.849 mmol) in 12 mL of chloroform After h, the reaction was quenched by addition of a saturated solution of sodium bicarbonate...
Ngày tải lên: 10/09/2015, 15:48
Affinity guided isolation, structure elucidation and total synthesis of laetirobin a and its analogue synthesis for therapeutic development 5
Ngày tải lên: 10/09/2015, 15:49
Affinity guided isolation, structure elucidation and total synthesis of laetirobin a and its analogue synthesis for therapeutic development 6
Ngày tải lên: 10/09/2015, 15:50
Affinity guided isolation, structure elucidation and total synthesis of laetirobin a and its analogue synthesis for therapeutic development 7
Ngày tải lên: 10/09/2015, 15:50
Affinity guided isolation, structure elucidation and total synthesis of laetirobin a and its analogue synthesis for therapeutic development 8
... Dr Martin Lear) • Affinity-Guided Isolation, Structure Elucidation and Total Synthesis of Laetirobin A and Its Analogue Synthesis for Therapeutic Development Distance Teaching University, Hagen, ... laws University of Applied Sciences, Isny/Allgaeu, Germany 1997 - 2001 Graduate of Pharmaceutical Chemistry (“Diplom-Ing.”) • Awarded patent for thesis work on the synthesis of chemiluminescence ... F Hoffmann-La Roche AG) 35 pp CONFERENCE PRESENTATIONS th Singapore International Chemistry Conference (SICC 6), Singapore, 2009 Reux B., Simon O., La Clair J J., Lear M J Total Synthesis of...
Ngày tải lên: 10/09/2015, 15:50
Stereochemical assignment and total synthesis of an antimalarial lipopeptide
... ASSIGNMENT AND TOTAL SYNTHESIS OF AN ANTIMALARIAL LIPOPEPTIDE SHIBAJI KUMAR GHOSH (M.Sc, UNIVERSITY OF CALCUTTA) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMISTRY ... cleavage of PMB 86 Scheme 6.7: Synthesis of azido tripeptide and Staudinger reaction 86 Scheme 6.8: Final coupling and synthesis of trimethyl ester of target peptide 87 Scheme 6.9: Conversion of the ... 76 Scheme 5.5: Oxidation studies 79 Scheme 5.6: Synthesis of (R)-fatty acid 80 Scheme 6.1: Synthesis of dipeptide 6-4 82 Scheme 6.2: Synthesis of tripeptide 84 Scheme 6.3: Boc protection 84 xi...
Ngày tải lên: 10/09/2015, 15:52
Synthetic studies towards total synthesis of bielschowskysin 1
... Study: [2+2] Cycloaddition of Allene-Butenolide 34 2.3 Synthesis of Left Fragment: First Generation 38 2.4 Synthesis of Right Fragment : First Generation 40 2.5 Synthesis of Right Fragment: First ... the biosynthesis of intricarene Scheme 1.5 Pattenden’s cyclobutanol synthesis of providencin Scheme 1.6 Stereo-defined syntheses of chiral γ-butenolides 10 Scheme 1.7 Paquette’s synthesis of the ... Sulikowski’s synthesis of the tetracyclic core of bielschowskysin 15 Scheme 1.17 Paquette’s synthesis of dihydropseudopterolide and gorgiacerone 17 Scheme 1.18 Paquette’s synthesis of acersolide...
Ngày tải lên: 11/09/2015, 09:13
Synthetic studies towards total synthesis of bielschowskysin 2
... furanocembranoid synthesis of the natural product acersolide 92 in 1993 (Scheme 1.18) 16 Scheme 1.17 Paquette’s synthesis of dihydropseudopterolide and gorgiacerone17 17 Scheme 1.18 Paquette’s synthesis of ... reported the first total synthesis of racemic bipinnatin J14b without protecting groups in steps from commercially available materials (Scheme 1.22) With their asymmetric total synthesis of bipinnatin ... activity of bielschowskysin (1) In the course of developing transannelation methods to natural products, we have begun studies towards the total synthesis of Our approach is to mimic the biosynthesis...
Ngày tải lên: 11/09/2015, 09:13
Synthetic studies towards total synthesis of bielschowskysin 4
Ngày tải lên: 11/09/2015, 09:13
Part 1 total synthesis and biological evaluation of antillatoxin and fragments part II synthetic studies towards the total synthesis of cytochalasans and tuberostemonine
... Chapter : Total Synthesis of Antillatoxin evaluation With this in mind, our group embarked on the total synthesis of antillatoxin and its analogues 1.3 Our Retrosynthetic Analysis of Antillatoxin ... be easily adapted to the synthesis of analogs for pharmacological studies Part I 14 Chapter : Total Synthesis of Antillatoxin 1.4 Results and Discussion 1.4.1 Synthesis of (2E, 4E)-2,4,6,6-tetramethyl-hepta-2,4-dienal ... Soc 1996, 118, 7237 Part I 18 Chapter : Total Synthesis of Antillatoxin 1.4.4 Synthesis of Fragment 34 Using Indium-Mediated Allylation 1.4.4.1 Synthesis of Fragment 65 - Strategy With aldehdye...
Ngày tải lên: 16/09/2015, 08:31
The total synthesis of c1 azacycloalkyl hexahyroccannabinoids the total synthesis of 3 oxaadamantyl hexahydrocannabinoids the synthesis of bicyclic 3 adamantyl cannabinoids
... pharmacology of cannabinoids and of cannabinoid receptors was described Also, SAR and earlier synthesis approaches to tricyclic cannabinoids were reviewed Chapter The total synthesis of three series of ... Professor Marcus A Tius for his financial support in the form of research assistanships as well as the Department of Chemistry of the University of Hawai‘i at Mānoa for support in the form of ... similar to (–)-9-THC while evaluation of binding affinities of 2,2disubstituted azetidine cannabinoid is in progress Chapter The total synthesis of a series of 3'-functionalized 3-oxaadamantyl...
Ngày tải lên: 13/05/2016, 09:48
The Art and Science of Total Synthesis
... in that the total synthesis of each molecule reflects the limits of the power of the art and science of organic synthesis at the time of the accomplishment One of the most notable of the many ... interested in the synthesis of cephalosporin C and, by 1965, they completed the first total synthesis of the molecule.[30] This total synthesis of cephalosporin C was the sole topic of Woodward s ... omitted as a result of space limitations Total Synthesis in the Nineteenth Century The birth of total synthesis occurred in the nineteenth century The first conscious total synthesis of a natural product...
Ngày tải lên: 26/08/2016, 11:15