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Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate

Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate Structure
CAS No.
136285-65-9
Chemical Name:
Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate
Synonyms
Azilsartan impurity Z;Azilsartan Impurity 113;Candesartan Impurity 16;Nicotinamide Impurity 62;Candesartan ester intermediate C3;2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate;Ethyl 2-[(t-butoxycarbonyl)amino]-3-nitrobenzoate;Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate;Ethyl-2-(tertiary butoxy carbonyl aMino)-3-nitro benzoate;ETHYL-2-T-BUTOXY-2-CARBOXYLAMINO-3-NITROBENZOATE 136285-65-9
CBNumber:
CB32537307
Molecular Formula:
C14H18N2O6
Molecular Weight:
310.3
MOL File:
136285-65-9.mol
Modify Date:
2024/5/9 13:11:54

Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate Properties

Boiling point 390.8±32.0 °C(Predicted)
Density 1.268
storage temp. Sealed in dry,Room Temperature
pka 12.00±0.70(Predicted)

Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate Chemical Properties,Uses,Production

Acquired resistance

A mixture of ethyl 2-carboxy-3-nitrobenzoate(23.9 g) and thionyl chloride (12 ml) in benzene (150 ml) was heated under reflux for 3 hours. The reaction mixture was concentrated to dryness. The resultant acid chloride (26 g, quantitative) was dissolved in methylene chloride (20 ml). The solution was added dropwise to a mixture of sodium azide (9.75 g) in dimethylformamide(DMF) (20 ml) while stirring vigorously. The reaction mixture was poured into ether-hexane (3:1, 200 ml) and water (250 ml) to separate into two layers. The organic layer was washed with water and then dried, followed by evaporation of the solvent. The residue was dissolved in t-butanol (200 ml), and the solution was heated gradually with stirring, followed by heating under reflux for 2 hours. The reaction mixture was concentrated in vacuo to give an oily product Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate (30 g).

Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate Preparation Products And Raw materials

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2-[[(1,1-Dimethylethoxy)carbonyl]amino]-3-nitrobenzoic acid ethyl ester Ethyl-2-(tertiary butoxy carbonyl aMino)-3-nitro benzoate 2-[1.1-diMethyl ethyl ethoxy carbonyl]aMino-3-nitro benzoic acid Ethyl Ester ( C3 ) Ethyl 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate Ethyl 2-[(t-butoxycarbonyl)amino]-3-nitrobenzoate Candesartan ester intermediate C3 Benzoicacid, 2-[[(1, 1-diMethylethoxy)carbonyl]aMino]-3-nitro-, ethyl ester Ethyl 2-((((2-methylpentan-2-yl)oxy)carbonyl)amino)-3-nitrobenzoate 2-[1.1-dimethyl ethyl ethoxy carbonyl]amino-3-nitro benzoic acid ethyl ester Azilsartan impurity Z ETHYL-2-T-BUTOXY-2-CARBOXYLAMINO-3-NITROBENZOATE 136285-65-9 2-((tert-butoxycarbonyl)amino)-3-nitrobenzoate Ethyl 2-[[(1,1-dimethylethoxy)carbonyl]amino]-3-nitrobenzoate Azilsartan Impurity 113 Nicotinamide Impurity 62 Candesartan Impurity 16 136285-65-9