4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid methyl ester

CAS NO.：1421312-34-6
Empirical Formula: C18H15NO4
Molecular Weight: 309.32
MDL number: MFCD30489347
Update Date: 2026-05-28 05:40:33

What is 4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid methyl ester?

The Uses of 4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid methyl ester

4-Hydroxy-1-methyl-7-phenoxy-methyl ester-3-isoquinolinecarboxylic Acid is used as a reagent in the preparation of Roxadustat (H948180), which is a drug used to treat anemia and chronic renal insufficiency.

Preparation

Add 25 g of glacial acetic acid solution containing methyl 1-((dimethylamino)methyl)-4-hydroxy-7-phenoxyisoquinolyl-3-carboxylate into a 1 L four-necked flask which contain 13 g Zinc powder. Then in a stirring state, add 7.5g of 5% dilute hydrochloric acid and raise the temperature to 50-60 ℃. When the raw materials in the liquid phase have basically reacted, reduce the temperature. Filter reaction solution. Rotary evaporated the filtrate obtain 4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid methyl ester (purity: 96.9%, yield: 87.7%).

Properties of 4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid methyl ester

Boiling point:	537.3±45.0 °C(Predicted)
Density	1.289±0.06 g/cm3(Predicted)
storage temp.	Inert atmosphere, 2-8°C
pka	6.24±0.50(Predicted)

Safety information for 4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid methyl ester

Computed Descriptors for 4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid methyl ester

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Related products of tetrahydrofuran

FG-4592 interMediate

Roxadustat

4-Hydroxy-1-methyl-7-phenoxy-3-isoquinolinecarboxylic acid ethyl ester