Buscar
Mostrando ítems 1-10 de 115
alpha,beta-Unsaturated Diazoketones as Platforms in the Asymmetric Synthesis of Hydroxylated Alkaloids. Total Synthesis of 1-Deoxy-8,8a-diepicastanospermine and 1,6-Dideoxyepicastanospermine and Formal Synthesis of Pumiliotoxin 251D
(AMER CHEMICAL SOCWASHINGTON, 2012)
A versatile and concise approach for the stereoselective synthesis of mono-, di-, and trihydroxylated indolizidines is presented in four to six steps from Cbz-prolinal and a diazophosphonate. The key steps involved a Wolff ...
Microbial transformation of cadina-4,10(15)-dien-3-one, aromadendr-1(10)-en-9-one and methyl ursolate by Mucor plumbeus ATCC 4740
(2002-03-04)
The sesquiterpenes cadina-4,10(15)-dien-3-one (1) and aromadendr-1(10)-en-9-one (squamulosone) (14) along with the triterpenoid methyl ursolate (21) were incubated with the fungus Mucor plumbeus ATCC 4740. Substrates 1, ...
Microbial transformation of cadina-4,10(15)-dien-3-one, aromadendr-1(10)-en-9-one and methyl ursolate by Mucor plumbeus ATCC 4740
(2002-03-04)
The sesquiterpenes cadina-4,10(15)-dien-3-one (1) and aromadendr-1(10)-en-9-one (squamulosone) (14) along with the triterpenoid methyl ursolate (21) were incubated with the fungus Mucor plumbeus ATCC 4740. Substrates 1, ...
Study of the interaction between progesterone and beta-cyclodextrin by electrochemical techniques and steered molecular dynamics
(AMER CHEMICAL SOC, 2008-08-21)
The interaction of progesterone with beta-cyclodextrin (beta-CD) was studied by differential pulse polarography. The aim of the present work was to study the effect of beta-CD on the electrochemical behavior of progesterone ...
21-hydroxylase deficiency transiently mimicking combined 21- and 11 beta-hydroxylase deficiency
(Walter De Gruyter GmbhBerlinAlemanha, 2008)
Evolution of the antibacterial activity and oxidation intermediates during the electrochemical degradation of norfloxacin in a flow cell with a PTFE-doped beta-PbO2 anode: Critical comparison to a BDD anode
(Elsevier B.V., 2018-09-10)
The electrochemical degradation of the antibiotic norfloxacin (NOR) was investigated using an electrode-posited polytetrafluoroethylene (PTFE)-doped beta-PbO2 anode; its attained performance was compared to that of a ...
Competition kinetics using the UV/H2O2 process: a structure reactivity correlation for the rate constants of hydroxyl radicals toward nitroaromatic compounds
(Pergamon-Elsevier Science Ltd., 2003-12)
The rate constants for hydroxyl radical reaction toward a set of nitroaromatic substrates kS, have been measured at 25ºC using competition experiments in the UV/H2O2 process. For a given pair of substrates S1 and S2, the ...
Microbial monooxygenases applied to fragrance compounds
(Elsevier Science BvAmsterdamHolanda, 2007)
The association of prepartum urine pH, plasma total calcium concentration at calving and postpartum diseases in Holstein dairy cattle
(Elsevier, 2021)
The use of anionic salts to prevent milk fever in dairy cattle has been an effective nutritional strategy; however, the degree of acidification that determines the most acceptable productive responses andwell-being of the ...