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Affinity-labelling corticoids I. Synthesis of 21-Chloroprogesterone, Deoxycorticosterone 21-(1-Imidazole) Carboxylate, 21-Deoxy-21-Chloro Dexamethasone, and Dexamethasone 21-Mesylate,…
Abstract The efficient and unambiguous preparation of several C-21 substituted affinity-labelling corticoids are described. Included is an improved procedure for the preparation of… Expand
Letter: Synthetic studies on histrionicotoxins. I. A stereocontrolled synthesis of (plus or minus)-perhydrohistrionicotoxin.
Letter: Synthetic studies on histrionicotoxins. II. A practical synthetic route to (plus or minus)-perhydro-and (plus or minus)-octahydrohistrionicotoxin.
Steroid derivatives for electrophilic affinity labelling of glucocorticoid binding sites: interaction with the glucocorticoid receptor and biological activity.
- A. Weisz, R. L. Buzard, D. Horn, M. P. Li, L. Dunkerton, F. Markland
- Chemistry, Medicine
- Journal of steroid biochemistry
- 1 April 1983
To investigate the possible use of electrophilic affinity labelling for the characterization of glucocorticoid receptors, different chemically reactive derivatives of deoxycorticosterone… Expand
Palladium-assisted C-glycosylation. Addition of carbanions to cyclic enol ethers
Palladium(0)-assisted synthesis of C-glycopyranosyl compounds.
Tetrakis(triphenylphosphine)palladium(0) effects the regio- and stereo-selective alkylation of 2-acetoxy-5,6-dihydro-2H-pyrans and 1-S-acetyl-1-thiohex-2-enopyranosides. Use of stabilized carbanions… Expand
Regioselective synthesis of substituted 1-thiohex-2-enopyranosides
A variety of 1-thiohex-2-enopyranosides have been prepared from their corresponding 3-O-methyl- or 3-O-acetylglycals by using trimethylsilyl thiols catalyzed by BF/sub 3/ etherate. This method is… Expand
Synthetic approaches to brevianamides A and B I. Preparation of 4-p-methoxybenzyl-5-(1′-carbomethoxy-2′-[1″, 1″-dimethylallyl-2′, 3′dihydroindole]methylidene)-1, 2-L-pyrolidinopiperazine-3, 6-dione…
Abstract Using an ester enolate Claisen rearrangement to prepare 1-carbomethoxy-2-(1′, 1′-dimethylallyl)-2, 3-dihydroindole-2-carboxylic acid followed by condensation with… Expand
EFFICACY EVALUATION OF FOUR HAND CLEANSING REGIMENS FOR FOOD HANDLERS
Synthetic approaches to bicyclomycin I. Prepration of monocylic intermediates by retrograde Michael cleavage of 6-alkyl-6-methoxyhexahydro-3H-thiazolo [3,4-a]pyrazine-5,8-diones.
Abstract The syntheses of N-protected-3-(hydroxypropyl)-3-methoxy-6-alkylidine piperazine-2,5-diones are described, in relation to an approach to bicyclomycin. A chemoselective Grignard reaction and… Expand