5-Dehydro Tolvaptan Chemical Properties

Melting point:

>118°C (dec.)

Boiling point:

593.2±50.0 °C(Predicted)

Density 

1.307

storage temp. 

Sealed in dry,Room Temperature

solubility 

DMSO (Slightly), Methanol (Slightly)

form 

Solid

pka

12.97±0.70(Predicted)

color 

White to Off-White

InChIKey

VENGMROMZOKURN-UHFFFAOYSA-N

SMILES

C(NC1=CC=C(C(N2C3=CC=C(Cl)C=C3C(=O)CCC2)=O)C(C)=C1)(=O)C1=CC=CC=C1C

5-Dehydro Tolvaptan Usage And Synthesis

Uses

5-Dehydro Tolvaptan is an impurity of Tolvaptan (T536650), a selective, competitive arginine vasopressin V2 receptor antagonist used to treat hyponatremia (low blood sodium levels) associated with congestive heart failure, cirrhosis, and the syndrome of inappropriate antidiuretic hormone (SIADH g

Preparation

To a 3 L reactor was added 1- (4-amino-2-methylbenzoyl) -7-chloro-5-oxo-2,3,4,5-tetrahydro- 1 H- 1 -benzazepine (70. 0 g, 212.90 mmol), dichloromethane (560 ml) and distilled water (140 ml), and the mixture was stirred for 1 hour. Magnesium hydroxide (14.90 g, 14.90 mmol) was added to the reaction mixture at 10 ° C. or lower, and the mixture was stirred for 30 minutes. 2-Methylbenzoyl chloride (30.42 ml) was gradually added to the reaction mixture, stirring for 3 hours. The reaction mixture was filtered to remove magnesium hydroxide, and the pH of the reaction mixture was adjusted to pH 8 to 9 using an aqueous sodium hydroxide solution, and then the organic layer was separated. The obtained organic layer was dried with sodium sulfate (Na 2 SO 4), filtered, and concentrated under reduced pressure to give 5-Dehydro Tolvaptan (yield: 96 percent).

5-Dehydro Tolvaptan(137973-76-3)Related Product Information

• (R)-(+)-Tolvaptan
• Ethyl 7-Chloro-5-oxo-1-toxyl-2,3,4,5,-tetrahydro-1H-benzo[b]azepine-4-carboxylate
• Tolvaptan Impurity 18
• Tolvaptan Impurity 13
• 5-Chloro-2-[(4-ethoxy-4-oxobutyl)[(4-methylphenyl)sulfonyl]amino]benzoic acid methyl ester
• Tolvaptan Impurity 21
• Tolvaptan Impurity 3 (DM-4104)
• Tolvaptan Impurity 30
• 7-Chloro-1,2,3,4-tetrahydro-1-[(4-methylphenyl)sulfonyl]-5H-1-benzazepin-5-one
• Tolvaptan Impurity 17
• Tolvaptan impurity 2
• Tolvaptan Impurity 20
• Tolvaptan Impurity 15
• Tolvaptan Impurity 11
• Tolvaptan Impurity 26
• Tolvaptan
• 7-Chloro-1,2,3,4-tetrahydrobenzo(b)azepin-5-one
• 7-Chloro-1,2,3,4-tetrahydro-1-(2-methyl-4-nitrobenzoyl)-5H-1-benzazepin-5-one