cas 33631-05-9, 2-Aminopyridin-4-ol | Articles data ｜lookchem

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33631-05-9

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Chemoselective Demethylation of Methoxypyridine
A chemoselective demethylation method for various methoxypyridine derivatives has been developed. Treatment of 4-methoxypyridine with L-selectride in THF for 2 h at reflux temperature afforded 4-hydroxypyridine in good yield; no reaction to anisole occurred. The utility of our method was demonstrated by the efficient synthesis of the metabolic substances of the antiulcer agent omeprazole. Chemoselective demethylation at the site of 3,5-dimethyl-4-methoxypyridine in the presence of 4-methoxybenzimidazole was achieved.
Makino, Kosho,Hasegawa, Yumi,Inoue, Takahide,Araki, Koji,Tabata, Hidetsugu,Oshitari, Tetsuta,Ito, Kiyomi,Natsugari, Hideaki,Takahashi, Hideyo
p. 951 - 954
(2019/05/10)

Discovery of novel antileishmanial agents in an attempt to synthesize pentamidine - Aplysinopsin hybrid molecule
In an attempt to synthesize pentamidine-aplysinopsin hybrid molecule 25, a lead molecule 8 (containing Z-configured aplysinopsin moiety) was identified for antileishmanial activity. Optimization of lead 8 provided 24 (containing E-configured aplysinopsin)
Porwal, Sharad,Chauhan, Shikha S.,Chauhan, Prem M. S.,Shakya, Nishi,Verma, Aditya,Gupta, Suman
supporting information; experimental part
p. 5793 - 5802
(2010/03/24)

Improved procedures for preparation of 4-hydroxy- and 2-amemo-4-methoxy-2-aminopyridines
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Sundberg, Richard J.,Jiang, Songchun
p. 117 - 122
(2007/10/03)

CNS active compounds
Compounds of the formula STR1 wherein R may be hydrogen or a straight or branched chain alkyl radical of from 1 to 10 carbon atoms, aryl of from 6 to 10 carbon atoms, or aralkyl of from 7 to 10 carbon atoms; Y may be hydrogen, alkyl of from 1 to 4 carbons, CF3, F, Cl, or Br; and Z may be hydrogen or as defined hereinafter. These compounds are useful as central nervous system stimulants or more specifically in enhancing performance or as mood elevators.
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(2008/06/13)

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Chemical Properties

Melting Point: 85 °C
Boiling Point: 253.9 °C at 760 mmHg
Flash Point:107.4 °C
Density: 1.208 g/cm³
Storage Temp.:Room temperature.
Vapor Pressure: 0.0178mmHg at 25°C
Refractive Index: 1.555
PKA: 5.30±0.18(Predicted)
PSA: 59.14000
LogP: 0.95060

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