1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid

Base Information

Chemical Name:1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid
CAS No.:1323157-88-5
Molecular Formula:C₁₈H₁₄F₃N₅O₃
Molecular Weight:405.336
Hs Code.:

Synonyms:1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid

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Chemical Property of 1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid

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Technology Process of 1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid

There total 5 articles about 1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 100.0%

: 1034613-46-1
ethyl 1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h] quinazoline-3-carboxylate

: 1323157-88-5
1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid

Guidance literature:: With ethanol; potassium hydroxide; for 1h; Reflux;
DOI:10.1016/j.bmcl.2011.05.122

Reference yield:

: 802535-77-9
ethyl 8-iodo-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylate

: 1323157-88-5
1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid

Guidance literature:: Multi-step reaction with 2 steps

1: palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl / N,N-dimethyl-formamide / 4 h / 80 °C / Inert atmosphere

2: ethanol; potassium hydroxide / 1 h / Reflux

With ethanol; palladium diacetate; potassium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; potassium hydroxide; In N,N-dimethyl-formamide; 1: Buchwald-Hartwig coupling;
DOI:10.1016/j.bmcl.2011.05.122

Reference yield:

: 802541-37-3
ethyl 6-[(dimethylamino)methylidene]-1-methyl-7-oxo-4,5,6,7-tetrahydro-1H-indazole-3-carboxylate

: 1323157-88-5
1-methyl-8-{[2-(trifluoromethoxy)phenyl]amino}-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid

Guidance literature:: Multi-step reaction with 2 steps

1: N,N-dimethyl-formamide / 6 h / 110 °C

2: ethanol; potassium hydroxide / 1 h / Reflux

With ethanol; potassium hydroxide; In N,N-dimethyl-formamide;
DOI:10.1016/j.bmcl.2011.05.122