- IMIDAZOPYRAZINE DERIVATIVES, PROCESS FOR PREPARATION THEREOF, AND THEIR USES AS LUCIFERINS
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The present invention is in the field of bioluminescence in biology and/or medicine. In particular, the invention provides imidazopyrazine derivatives, processes for preparation thereof, and their uses as luciferins.
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Page/Page column 77-78
(2018/11/22)
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- Studies on pyrazines. 35 [1]. An improved synthesis of bromopyrazines from hydroxypyrazines
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The synthesis of bromopyrazines from hydroxypyrazines was successfully effected by the procedure via trimethylsilyloxypyrazines, the sequence of which proceeds under mild conditions and does not require the isolation of intermediate.
- Sato, Nobuhiro,Narita, Nobuhiko
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p. 783 - 786
(2007/10/03)
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- Novel (substituted phenyl)-1,2,4-triazolo (4,3-A)pyrazines and novel 2-hydrazino-(substituted phenyl)pyrazine intermediates
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This disclosure describes novel 5-,6- and 8-(phenyl and substituted phenyl)-1,2,4-triazolo[4,3-a]pyrazines which posses utility as anxiolytic agents.
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- Some Reactions of Mono Substituted Pyrazine Monoxides
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The reactions of the monoxides of propylpyrazine and phenylpyrazine with phosphoryl chloride or acetic anhydride were investigated.Except in the case of the reaction of 2-propylpyrazine 1-oxide with acetic anhydride, chlorination or acetoxylation occurred
- Ohta, Akihiro,Watanabe, Tokuhiro,Akita, Yasuo,Yoshida, Maki,Toda, Suzumi,et al.
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p. 1061 - 1067
(2007/10/02)
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- 2,3-Diphenyl-5-ethylpyrazine
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The compound 2,3-diphenyl-5-ethyl-pyrazine, useful as a precursor in the synthesis of those compounds of the class of pyrazine, arylpyrazine, diphenylpyrazine, and cycloalkylpyrazine malonates, acetates, acetamides, and acetic acids, useful for their ultraviolet light absorption properties.
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