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An efficient semisynthesis of 7-deoxypaclitaxel from taxine
(Royal Soc Chemistry, Cambridge, 1998)
Highly cytotoxic 7-deoxypaclitaxel analogues are obtained by a semisynthesis starting from taxine-the most abundant naturally occurring taxane diterpene fraction.
Mixed dopaminergic/serotonergic properties of several 2-substituted 4-[2-(5-benzimidazole)ethyl]-1-arylpiperazines
(Wiley-VCH Verlag, 1998)
A series of substituted 4-[2-(5-benzimidazole)ethyl]-arylpiperazines was synthesized by introducing different substituents into position 2 of benzimidazole ring of 4-[2-(N,N-di-n-propylamino)ethyl]-1,2-diaminobenzenes. ...
Electrochemical passivation of iron in NO3-, SO42-, and ClO4- solutions
(American Chemical Society (ACS), 1998)
Electrochemical passivation of iron was studied in NO3-, SO42-, and ClO4- solutions of different pH values. Passivation potential of iron in NO3- and ClO4- was similar for any pH examined, while in SO42- it was more anodic. ...
Modeling of drawing thin glass sheet from a preform / Model izvlačenja tankih staklenih traka iz predoblika
(Serbian Chemical Society, 1998)
A one-dimensional model of thin glass sheet drawing has been developed. This model includes momentum, heat and mass balance equations. The density, viscosity and specific heat of the glass were calculated as functions of ...
Preliminary investigation of antimicrobial activity of St. John's Wort
(Medical University Faculty of Pharmacia, 1998)
Preliminary investigations of Hypericum perforatum have shown that one of the most important activities of the plant is its antibacterial activity. The most active component of the acetonic extract has been isolated through ...
New substituted 2-methylthiomethyl- and 2-methylsulphinylmethylenebenz- imidazoles with D 2 /5-HT(1A) activity
(Govi-Verlag Pharmazeutischer Verlag GmbH, 1998)
Several 2-methylthiomethylbenzimidazoles (3a-e) and the corresponding sulphinyl derivatives 4a-e were synthesized and evaluated measuring their in vitro binding affinity at the D 1 and D 2 dopamine (source: synaptosomal ...
Sesquiterpene lactones from Centaurea species: C. derventana and C. kosaninii
(Georg Thieme Verlag, 1998)
Synthesis and dopaminergic features of six novel 3-arylpiperidines
(Bollettino Chimico Farmaceutico, 1998)
Four substituted 3-aryl-1-{2-[5-(1H-benzimidazole)]ethyl}piperidines and two 3-aryl-1-{2-[6-(1,4-dihydroxyquinoxaline-2,3-dione)]ethyl} piperidines were synthesized, characterized and evaluated for in vitro binding affinity ...
Oxidation products of hyperforin from Hypericum perforatum
(Elsevier, 1998)
The isolation of two oxidation products of hyperforin from the aerial parts of Hypericum perforatum and their structure determination by means of 2D NMR methods is reported. The products had the same 1-(2-methyl-1- ...
An improved approach to B-norsteroids: An one-pot preparation of 3β-acetoxy-5-oxo-5,6-seco-cholestan-6-oic and 3β-acetoxy-5,17-dioxo-5,6-seco-androstan-6-oic acids
(Serbian Chemical Society, 1998)
A simple one-put procedure for the synthesis of the 5,6-seco-steroidal acids 9a,b in described in this paper. It consists of the epoxidation of the ▲ 5 -steroids, i.e., cholesteryl acetate (8a) and 17-oxo-aandrost-5-en-3β-yl ...