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18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide
ChemicalBook CAS DataBase List Tert-Butyl 2-Amino-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate(WX141382)
1209487-56-8

Tert-Butyl 2-Amino-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate(WX141382) synthesis

10synthesis methods
1209488-61-8 Synthesis
Tert-Butyl 2-(((Benzyloxy)Carbonyl)Amino)-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate

1209488-61-8
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Tert-Butyl 2-Amino-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate(WX141382)

1209487-56-8
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$90.00/5mg

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Yield:1209487-56-8 100%

Reaction Conditions:

with hydrogen;20% palladium(II) hydroxide on carbon in tetrahydrofuran;methanol;water at 20; for 4 h;

Steps:

2-1.8

Step 8 To a solution of Compound I-158 (508.7 mg, 1.366 mmol) in tetrahydrofuran:methanol (1:1, 7.0 mL), 20% palladium hydroxide-carbon (50% of water content, 100 mg) was added. The solution was then stirred under hydrogen atmosphere at room temperature for 4 hours. The reaction solution was filtered, and then the filtrate was concentrated in vacuo to yield Compound I-55 (1.52 g, 100%). LC/MS (Method D): 0.92 min, [M+H]+ = 239 1H-NMR (CDCl3) δ: 5.41 (1H, s), 4.53 (2H, s), 3.95 (2H, t, J = 5.3 Hz), 3.84 (2H, t, J = 5.3 Hz), 1.48 (9H, s).

References:

EP2327704,2011,A1 Location in patent:Page/Page column 53-54

1H-Pyrazole-3,5-dicarboxylic acid, 1-[2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl]-, 3,5-dimethyl ester

1209492-68-1
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Tert-Butyl 2-Amino-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate(WX141382)

1209487-56-8
32 suppliers
$90.00/5mg

References
1H-Pyrazole-3,5-dicarboxylic acid, 1-[2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl]-, 3-methyl ester

1209492-69-2
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Tert-Butyl 2-Amino-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate(WX141382)

1209487-56-8
32 suppliers
$90.00/5mg

References
1H-Pyrazole-3-carboxylic acid, 1-[2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl]-5-(hydroxymethyl)-, methyl ester

1209492-70-5
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Tert-Butyl 2-Amino-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate(WX141382)

1209487-56-8
32 suppliers
$90.00/5mg

References
1H-Pyrazole-3-carboxylic acid, 5-(chloromethyl)-1-[2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl]-, methyl ester

1209492-71-6
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Tert-Butyl 2-Amino-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate(WX141382)

1209487-56-8
32 suppliers
$90.00/5mg

References

Tert-Butyl 2-Amino-6,7-Dihydropyrazolo[1,5-A]Pyrazine-5(4H)-Carboxylate(WX141382) Related Search:

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