78541-97-6

Basic information

• Product Name: Piquindone
• Synonyms: Piquindone;Ro 22-1319;(4aR,8aR)-3-ethyl-2,6-dimethyl-4a,5,7,8,8a,9-hexahydro-1H-pyrrolo[2,3-g]isoquinolin-4-one
• CAS NO: 78541-97-6
• Molecular Formula: C15H22N2O
• Molecular Weight: 246.352
• Mol File: 78541-97-6.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 419°C at 760 mmHg
• Flash Point: 207.2°C
• Appearance: /
• Density: 1.103g/cm³
• Vapor Pressure: 3.14E-07mmHg at 25°C
• Refractive Index: 1.559
• CAS DataBase Reference: Piquindone(CAS DataBase Reference)
• NIST Chemistry Reference: Piquindone(78541-97-6)
• EPA Substance Registry System: Piquindone(78541-97-6)

Safety Data

• Hazardous Substances Data: 78541-97-6(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 78541-97-6 differently. You can refer to the following data:
1. Antipsychotic.
2. Piquindone, is an atypical antipsychotic, acting as a selective D2 receptor antagonist. It is a possible drug for the treatment of schizophrenia. It has also been found to be effective in the treatment of Tourette''s syndrome in numerous clinical studies.

InChI:InChI=1/C15H22N2O/c1-4-11-9(2)16-13-7-10-5-6-17(3)8-12(10)15(18)14(11)13/h10,12,16H,4-8H2,1-3H3/t10-,12+/m0/s1

Upstream product

• 88599-19-3 1-methyl-3-(2-methyl-1,3-dioxolan-2-yl)pyridinium iodide 
• 88599-20-6 arecolone hydrobromide 
• 55676-25-0 3-(2-methyl-[1,3]dioxolan-2-yl)-pyridine 
• 63-75-2 arecoline 
• 350-03-8 methyl-3-pyridylketone 
• 78477-69-7 1,2,3,4,4a,7-hexahydro-6,8-dimethoxy-2-methylisoquinoline 
• 75690-06-1 (+/-)-heexahydro-2-methyl-6,8(2H,7H)-isoquinolinedione 
• 32818-79-4 2-(hydroxyimino)pentan-3-one 
• 79851-68-6 2-aminopentan-3-one hydrochloride 
• 108-59-8 malonic acid dimethyl ester 
• 50-00-0 formaldehyd 
• 75689-36-0 3-Ethyl-2-methyl-6-(2-methylamino-ethyl)-1,5,6,7-tetrahydro-indol-4-one; hydrochloride 
• 55806-53-6 Arecolone 
• 105-53-3 diethyl malonate 

Relevant articles and documents

Syntheses of an Antipsychotic Pyrroloisoquinoline from Areca Alkaloids

2,6-Dimethyl-3-ethyl-4,4a,5,6,7,8,8a,9-octahydro-4a,8a-trans-1H-pyrroloisoquinolin-4-one, a conformationally defined antipsychotic agent of current clinical interest, can be synthesized in a two-step, single-pot process from arecoline, a commercially available member of the areca alkaloid group.The yield is diminished by the competing, base-induced rearrangement of arecoline to 1,3-dimethyl-2-pyridone.This problem can be circumvented by using arecolone as the starting material.A convenient synthesis of arecolone from 3-acetylpyridine is described.A modifiedform of the Neber rearrangement was used to prepare 2-amino-3-pentanone hydrochloride for use in the Knorr pyrrole synthesis step of the process.Two isomeric pyrroloisoquinolines produced as minor byproducts were isolated and characterized as the cis- and trans- isomers.Characterization of the latter included an X-ray crystal structure determination.