Istvan Pintér

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We report the solid phase synthesis of –GG-X-GG– type α/β-carbopeptoids incorporating RibAFU(ip) (1a, tX) or XylAFU(ip) (2a, cX) sugar amino acids. Though coupling efficacy is moderate, both the lengthier synthetic route using Fmoc derivative (e.g., Fmoc-RibAFU(ip)-OH) and the azido derivative (e.g., N3-RibAFU(ip)-OH) via Staudinger reaction with nBu3P can(More)
To obtain key sugar derivatives for making homooligomeric foldamers or α/β-chimera peptides, economic and multigram scale synthetic methods were to be developed. Though described in the literature, the cost-effective making of both 3-amino-3-deoxy-ribofuranuronic acid (H–t X–OH) and its C-3 epimeric stereoisomer, the 3-amino-3-deoxy-xylofuranuronic acid(More)
New generation electricity network called Smart Grid is a recently conceived vision for a cleaner, more efficient and cheaper electricity system. One of the major challenges of electricity network is that generation and consumption should be balanced at every moment. This paper introduces a new concept for controlling the demand side by the means of(More)
For exact examination of human information processing ability we elaborated an information-theory-based model and a new measuring method. Starting from the theoretical background of the well-known Hick–Hyman law and analysing the data acquired during the Soyuz–Salyut space missions, an important fact was derived. When examining the model by reducing the(More)
Physiological and biochemical evidence indicates the existence of functional muscarinic cholinergic receptors in the anterior pituitary. The selectivity of these receptors has been characterised by studying the binding of [3H]quinuclidinyl benzilate ([3H]QNB) and [3H]diphenyl-acetoxy-N-methyl-piperidine ([3H]4-DAMP) in membrane preparation of male rat(More)
The precise mechanism of action of alpha 2 adrenoceptor blockers in not known, although in principle they have two main effects: (i) they stimulate the norepinephrinergic system by inhibiting the negative feed back of norepinephrine release (presynaptic effect) and (ii) they inhibit the effects of norepinephrine on postsynaptic alpha 2 adrenoceptors. We(More)
The direct effect of acetylcholine on pituitary growth hormone secretion during the postnatal period of the rat was studied using a superfusion system. Acetylcholine elicited a dose related stimulatory effect on growth hormone (GH) secretion in the pituitaries from 2-day old rats. M1 muscarinic agonist McN A343 mimicked the GH releasing effect of(More)
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