Results 1 to 10 of about 12,602 (203)
Nifedipine–pyrazine (2/1) [PDF]
Acta Crystallographica Section E, 2010 In the title compound, 2C17H18N2O6·C4H4N2 [systematic name: 3,5-dimethyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate–pyrazine (2/1)], the complete pyrazine molecule is generated by crystallographic inversion ...
Nate Schultheiss +2 more
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Dissecting the Relationship between Microbial Community Succession and Pyrazine Metabolite Synthesis in Nongxiangxing Daqu [PDF]
Shipin Kexue, 2023 The correlation between the stages of pyrazine synthesis and the microbial flora during the making of Nongxiang Daqu was analyzed, and the effect of microbial interactions on the synthesis of pyrazine during Daqu making was explored.
CHEN Yingqi, CHEN Jie, ZHOU Yaojin, LI Zijian, TANG Shichao, ZHAO Yuchuan, LUO Huibo, HUANG Dan
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Pyrazine-2-substituted carboxamide derivatives: synthesis, antimicrobial and Leuconostoc mesenteroides growth inhibition activity [PDF]
Journal of the Serbian Chemical Society, 2006 Condensation of pyrazine-2,3-dicarboxylic acid anhydride with aminoacetophenones gave the corresponding N-(acetylphenyl)pyrazine-2-carboxamide. Their reactions with some electrophilic (carbonyl group, bromine) and nucleophilic (malononitrile, hydrazine ...
A. H. F. ABD EL-WAHAB +5 more
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Energies, 2022 Three novel pyrazine-based organic photosensitizers denoted as TPP, TPPS, and TPPF were synthesized for dye-sensitized solar cell (DSSC) studies. Chemical structures of the pyrazine-based photosensitizers were designed with pyrazine derivatives as ...
Mi-Ra Kim +7 more
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Natural Products–Pyrazine Hybrids: A Review of Developments in Medicinal Chemistry
Molecules, 2023 Pyrazine is a six-membered heterocyclic ring containing nitrogen, and many of its derivatives are biologically active compounds. References have been downloaded through Web of Science, PubMed, Science Direct, and SciFinder Scholar.
Guo-Qing Chen +5 more
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Foods, 2023 Despite the importance of pyrazines in Baijiu flavor, inoculating functional strains to increase the contents of pyrazine in Daqu and how those interact with endogenic communities is not well characterized.
Qiuxiang Tang +10 more
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International Journal of Electrochemical Science, 2020 Eight (8) pyrazine derivatives were tested as mild steel corrosion inhibitors in a simulated oil field acidizing environment. Immersion tests and DFT calculations were adopted for the study. Immersion tests were carried out at 0.2 wt.
I.B. Obot, S.A. Umoren
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Diethyl pyrazine-2,5-dicarboxylate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2012 The mol-ecule of the title compound, C(10)H(12)N(2)O(4), is located around an inversion center. The carboxyl-ate groups are twisted slightly with respect to the pyrazine ring, making a dihedral angle of 2.76 (19)°. In the crystal, mol-ecules are stacked along the c axis via weak C-H⋯O hydrogen bonds.
Chuan-Hui Li, Wen-Shi Wu, Yu-Min Huang
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Methyl pyrazine-2-carboxylate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2009 The title compound, C(6)H(6)N(2)O(2), is approximately planar [r.m.s. deviation = 0.0488 (3) Å]. In the crystal, weak inter-molecular C-H⋯O and C-H⋯N inter-actions join the mol-ecules into an infinite three-dimensional network.
Chang-Hua Zhang +2 more
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Frontiers in Chemistry, 2022 Four novel triterpenoid alkaloids, siragrosvenins A–D (1–4), and two new cucurbitane-type triterpenoids, siragrosvenins E–F (5, 6), together with eight known analogs (7−14), were isolated from the roots of Siraitia grosvenorii.
Huijuan Wang +8 more
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