What is the structure of Pyrazine?
Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C4H4N2. It is a symmetrical molecule with point group D2h. Pyrazine is less basic than pyridine, pyridazine and pyrimidine.
What is Pyrazine found in?
Bordeaux
Short for alkyl-methoxypyrazines, pyrazines are chemical compounds generally found in higher levels in the classic Bordeaux varietals- Sauvignon Blanc, Cabernet Franc, Cabernet Sauvignon, Merlot, Carménère and Malbec.
What is pyrazine in wine?
More correctly known by their long name methoxypyrazines, pyrazines are the compounds in grapes that can cause a powerful green bell pepper aroma and flavor. Pyrazines (PEER-a-zeens) are especially prevalent in sauvignon blanc and cabernet sauvignon.
What is a pyrazine ring?
pyrazine, any of a class of organic compounds of the heterocyclic series characterized by a ring structure containing four atoms of carbon and two of nitrogen. The pyrazine ring is part of many polycyclic compounds of biological or industrial significance.
What is a pyrazine in wine?
Which heteroatom is present in pyrazine?
pyrazine, any of a class of organic compounds of the heterocyclic series characterized by a ring structure containing four atoms of carbon and two of nitrogen.
What is the molecular formula for pyrazolopyrimidine?
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Pyrazolopyrimidines are a series of isomeric heterocyclic chemical compounds with the molecular formula C 6 H 5 N 3. They form the central core of a variety of more complex chemical compounds including some pharmaceuticals and pesticides.
What kind of drugs can pyrazole be used for?
A large number of drugs incorporating pyrazole structure have been utilized as partial agonists for nicotinic acid receptors [42], CDK inhibitors [43], p38 kinase inhibitors [44], antidepressants [45], antimicrobial agents [46], antiviral agents [47], and antifungal agents [48] solely or along with the combination of other structural motifs.
What kind of nitrogen atoms are in pyrazole?
Pyrazole has two ring nitrogen atoms in which N1 is pyrrolic and N 2 is pyridine-like. The N 1 nitrogen is not reactive but is deprotonated in the presence of a base-forming anion.
Which is the active metabolite of pyrazole in vivo?
Studies with 4-hydroxypyrazole ( 71 ), a major metabolite of pyrazole, have shown it to be a potent inhibitor of catalase activity both in vivo and in vitro and this suggests that it is the active metabolite formed from pyrazole in vivo.