pyrazine


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Related to pyrazine: thiazole

pyrazine

(pĭr′ə-zēn′)
n.
1. A crystalline organic base, C4H4N2, having a six-member aromatic ring in which the first and fourth atoms are nitrogen and the rest are carbon.
2. Any of a group of compounds derived from or structurally related to this base. Pyrazines occur in pteridines, some vitamins, and certain dyes such as phenazine.
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2010) Efficacy of favipiravir (T-705) and T-1106 pyrazine derivatives in phlebovirus disease models.
Protective effect of tetraethyl pyrazine against focal cerebral ischemia/reperfusion injury in rats: therapeutic time window and its mechanism," Thrombosis Research, vol.
Hashim and Chaveron [7] and Cros and Jeanjean [8] have suggested that during the drying of fermented cocoa beans, reducing sugars participate in non-enzymatic browning reactions (Maillard reactions) to form volatile fractions of pyrazines.
Previously, identification of 2,5dm3vp had not been possible, as compared to the other pyrazine, its quantity was very small (Robledo 2008).
We estimated the expected chemical shifts for carbon atoms arising from the pyrazine end group on the basis of literature data for similar structure as well as from empirical calculations (32).
It was, therefore, considered worthwhile to study the reactions of dichlorobis (cyclopentadienyl) titanium (IV) with different said pyrazine carboxylic acids.
It is a synthetic pyrazine analogue of nicotinamide and a prodrug, which is converted to the active form pyrazinoic acid by an enzyme pyrazinamidase (PZase) (1).
Bouklah, M, Attayibat, A, Kertit, S, Ramdani, A, Hammouti, B, "A Pyrazine Derivative as Corrosion Inhibitor for Steel in Sulphuric Acid Solution.
The sac ion is flat enough to permit the building of one-and bidimensional polymeric structures using pyrazine, (pyz), or 4,4'-bipyridine, (4,4'-bipy), as rigid spacing blocks.
The odours emitted from staminate and pistillate inflorescences resemble each other in scent chemistry, mainly consisting of a pyrazine based compound (2-methoxy-3-secbutylpyrazine), that has a strong heavy odour, unpleasant to humans, but thought to be a key factor in attracting specific pollinator species.
The Argonne magnetic polymer, which forms as deep blue crystals, is produced when copper ions bind to pyrazine molecules, creating a sheet-like structure.
The levels of pyrazine, responsible for roasted or chocolate notes, significantly decreased after product storage at ambient and high relative humidity.