168626-93-5

Basic information

• Product Name: N-(4-(2-Methyl-5,6-dihydro-4H-benzo[b]oxazolo[5,4-d]azepine-6-carbonyl)phenyl)-[1,1'-biphenyl]-2-carboxaMide
• Synonyms: N-(4-(2-Methyl-5,6-dihydro-4H-benzo[b]oxazolo[5,4-d]azepine-6-carbonyl)phenyl)-[1,1'-biphenyl]-2-carboxaMide;Conivaptan hydrochloride Impurity G;Conivaptan hydrochkoride Impurity G
• CAS NO: 168626-93-5
• Molecular Formula: C32H25N3O3
• Molecular Weight: 499.5592
• EINECS: -0
• Mol File: 168626-93-5.mol

Chemical Properties

• Boiling Point: 679.5±55.0 °C(Predicted)
• Appearance: /
• Density: 1.286±0.06 g/cm3(Predicted)
• PKA: 12.78±0.70(Predicted)
• CAS DataBase Reference: N-(4-(2-Methyl-5,6-dihydro-4H-benzo[b]oxazolo[5,4-d]azepine-6-carbonyl)phenyl)-[1,1'-biphenyl]-2-carboxaMide(CAS DataBase Reference)
• NIST Chemistry Reference: N-(4-(2-Methyl-5,6-dihydro-4H-benzo[b]oxazolo[5,4-d]azepine-6-carbonyl)phenyl)-[1,1'-biphenyl]-2-carboxaMide(168626-93-5)
• EPA Substance Registry System: N-(4-(2-Methyl-5,6-dihydro-4H-benzo[b]oxazolo[5,4-d]azepine-6-carbonyl)phenyl)-[1,1'-biphenyl]-2-carboxaMide(168626-93-5)

Safety Data

• Hazardous Substances Data: 168626-93-5(Hazardous Substances Data)

Upstream product

• 124-42-5 acetamidine hydrochloride 
• 261787-69-3 4'-(4-bromo-5-oxo-2,3,4,5-tetrahydro-1H-1-benzoazepine-1-carbonyl)-2-phenylbenzanilide 
• 168626-54-8 N-[4-(5-oxo-2,3,4,5-tetrahydro-1H-benzazepine-1-carbonyl)phenyl]biphenyl-2-carboxamide 
• 7789-45-9 copper(II)bromide 
• 947-84-2 2-Biphenylcarboxylic acid 
• 14002-52-9 o-phenylbenzoyl chloride 
• 137976-09-1 1-(4-aminobenzoyl)-2,3,4,5-tetrahydro1H-1-benzazepin-5-one 
• 68595-19-7 1-[(4-methylphenyl)sulfonyl]-5-oxo-2,3,4,5-tetrahydro-1H-1-benzazepine-4-carbonitrile 
• 1127-74-8 1,2,3,4-tetrahydro-5H-benzo[b] azepin-5-one 
• 137975-89-4 1-(4-nitrobenzoyl)-2,3,4,5-tetrahydro-1H-1-benzazepin-5-one 

Relevant articles and documents

Practical Synthesis of N-{4-[(2-Methyl-4,5-dihydroimidazo[4,5-d][1] benzazepin-6(1H)-yl)carbonyl]phenyl}biphenyl-2-carboxamide Monohydrochloride: An Arginine Vasopressin Antagonist

A novel, reliable, and cost-effective synthetic route to N-{4-[(2-methyl-4,5-dihydroimidazo[4,5-d][1]benzazepin-6(1H)-yl)carbonyl] -phenyl}biphenyl-2-carboxamide monohydrochloride (1, YM087), a potent Arginine vasopressin antagonist, has been developed. Using moisture-controlled potassium carbonate, imidazole formation from α-bromoketone furnished imidazobenzazepine, avoiding potential oxazole-ring formation. Catalytic reduction of nitro imidazobenzazepine afforded the corresponding amine in high yields. Treatment of the imidazole-containing amine directly, with a carbonyl chloride, afforded the target amide circumventing protection of the imidazole.

Nonpeptide arginine vasopressin antagonists for both V(1A) and V2 receptors: Synthesis and pharmacological properties of 4'-(1,4,5,6- tetrahydroimidazo[4,5-d][1]benzoazepine-6-carbonyl)benzanilide derivatives and 4'-(5,6-dihydro-4H-thiazolo[5,4-d] [1]benzoazepine-6-carbonyl)benzanilide derivatives

Arginine vasopressin (AVP) has a dual action mainly in the periphery, i.e., vasoconstriction and water reabsorption via V(1A) and V2 receptors; it may play a role in a number of diseases, including congestive heart failure (CHF), hypertension, renal disease, edema, and hyponatremia. We have attempted to develop a new series of orally active AVP antagonists for both V(1A) and V2 receptors based on the hypothesis that the blockade of both V(1A) and V2 receptors might be beneficial to CHF patients. In this report, a series of compounds structurally related to 4'-(1,4,5,6- tetrahydroimidazo[4,5-d][1]benzoazepine-6-carbonyl)benzanilide and 4'-(5,6- dihydro-4H-thiazolo[5,4-d][1]benzoazepine-6-carbonyl)benzanilide were synthesized and examined for AVP antagonist activity for both V(1A) and V2 receptors. As a result, it was found that the 4'-(1,4,5,6- tetrahydroimidazo[4,5-d][1]benzoazepine-6-carbonyl)-2-phenylbenzanilide derivatives showed potent binding affinity for both V(1A) and V2 receptors. Especially, 4'-(2-methyl-1,4,5,6-tetrahydroimidazo[4,5-d][1]benzoazepine-6- carbonyl)-2-phenylbenzanilide monohydrochloride (18, YM087=conivaptan hydrochloride) exhibited potent binding affinity and AVP antagonist activity, after intravenous administration, for both V(1A) and V2 receptors. Furthermore, YM087 exhibited the most potent oral activity for the V2 receptor. Details of the synthesis and pharmacological properties of this series are presented.

Condensed benzazepine derivative and pharmaceutical composition thereof

This invention relates to nitrogen-containing aromatic 5-membered ring-condensed benzazepine derivatives represented by the general formula (I) STR1 (symbols in the formula have the following meanings; ring B: a nitrogen-containing aromatic 5-membered ring having at least 1 nitrogen atom and optionally one oxygen or sulfur atom, which may optionally have substituent(s), R1 and R2 : these may be the same or different from each other and each represents a hydrogen atom, a halogen atom, a lower alkyl group, an amino group which may optionally be substituted by lower alkyl group(s), or a lower alkoxy group, A: a single bond; a group represented by the formula n: 0 or an integer of from 1 to 3, R3 and R4 : these may be the same or different from each other and each represents a hydrogen atom, a lower alkyl group (provided that R3 and R4 may together form a lower alkylene group having 2 to 7 carbon atoms), and ring C: a benzene ring which may optionally have substituent(s)) and salts thereof; to pharmaceutical compositions which contain these compounds as an active ingredient and to intermediates which are useful in synthesizing these compounds. The compounds of this invention are useful as arginine vasopressin antagonists.