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18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide
ChemicalBook CAS DataBase List 2-AMINO-7-ETHYL-5-OXO-5H-CHROMENO[2,3-b]PYRIDINE-3-CARBOXYLIC ACID

2-AMINO-7-ETHYL-5-OXO-5H-CHROMENO[2,3-b]PYRIDINE-3-CARBOXYLIC ACID synthesis

4synthesis methods
Cyanoacetic acid

372-09-8
350 suppliers
$20.00/25g

2-AMINO-6-ETHYL-3-FORMYLCHROMONE

68301-76-8
8 suppliers
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2-AMINO-7-ETHYL-5-OXO-5H-CHROMENO[2,3-b]PYRIDINE-3-CARBOXYLIC ACID

68302-51-2
12 suppliers
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Yield:68302-51-2 55%

Reaction Conditions:

with pyridine at 120; for 2.5 h;

References:

Nohara;Ishiguro;Ukawa;Sugihara;Maki;Sanno [Journal of Medicinal Chemistry,1985,vol. 28,# 5,p. 559 - 586]

5H-[1]Benzopyrano[2,3-b]pyridine-3-carboxylic acid, 2-amino-7-ethyl-5-oxo-, ethyl ester

68301-94-0
1 suppliers
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2-AMINO-7-ETHYL-5-OXO-5H-CHROMENO[2,3-b]PYRIDINE-3-CARBOXYLIC ACID

68302-51-2
12 suppliers
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References
50743-19-6 Synthesis
6-ETHYL-4-OXO-4H-1-BENZOPYRAN-3-CARBO-NI TRILE, 99

50743-19-6
22 suppliers
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2-AMINO-7-ETHYL-5-OXO-5H-CHROMENO[2,3-b]PYRIDINE-3-CARBOXYLIC ACID

68302-51-2
12 suppliers
inquiry

References
2-AMINO-6-ETHYL-3-FORMYLCHROMONE

68301-76-8
8 suppliers
inquiry

2-AMINO-7-ETHYL-5-OXO-5H-CHROMENO[2,3-b]PYRIDINE-3-CARBOXYLIC ACID

68302-51-2
12 suppliers
inquiry

References