125-64-4 Usage
Description
Methyprylon, also known by the brand name Nolurate, is a nearly white, crystalline powder with a slight characteristic odor and a bitter taste. It has a melting range of 74-77°C and is soluble in water, as well as very soluble in alcohol, chloroform, ether, and benzene. Methyprylon is a sedative and hypnotic agent used in the medical field.
Uses
Used in Medicine:
Methyprylon is used as a sedative and hypnotic agent for its calming and sleep-inducing properties. It helps in treating conditions like insomnia and anxiety by promoting relaxation and facilitating sleep.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, methyprylon is used as an active ingredient in the formulation of various medications aimed at treating sleep disorders and anxiety-related conditions. Its chemical properties make it suitable for incorporation into different drug delivery systems, ensuring effective and controlled release of the compound for therapeutic purposes.
Originator
Noludar,Roche,US,1955
Manufacturing Process
24 parts by weight of powdered sodium are suspended in 100 parts by
volume of absolute benzene and to this suspension is added a freshly
prepared solution of 150 parts by weight of methyl formate and 165 parts by
weight of 2,4-dioxo-3,3-diethyl-piperidine in 900 parts by volume of absolute
benzene. By cooling with cold water, the temperature is maintained at 25° to
28°C. After being stirred for 12 hours 200 parts by volume of 0.6 N sodium
hydroxide are added while cooling. The aqueous layer is separated and
acidified to Congo red by means of 35% hydrochloric acid. The 2,4-dioxo-3,3-
diethyl-5-oxymethylenepiperidine is precipitated in good yield as a solid. After
having been recrystallized in chloroform/petroleum ether it melts at 140° to 141°C.5 parts by weight of 2,4-dioxo-3,3-diethyl-5-oxymethylene-piperidine are
hydrogenated in 25 parts by volume of methanol in the presence of about 2
parts by weight of Raney nickel at 120°C and under an elevated pressure of
100 atm. Once 2 mols of hydrogen are absorbed, the hydrogenation is
interrupted, the solution is separated from the catalyst and concentrated and
the residue is distilled in vacuo. The distillate, boiling between 178° and
185°C under a pressure of 16 mm, consists of 2,4-dioxo-3,3-diethyl-5-methylpiperidine, which melts at 74° to 75°C.The same compound is obtained when proceeding according to the following
alternative procedure. A mixture of 39.4 parts by weight of 2,4-dioxo-3,3-
diethyl-5-oxymethylenepiperidine and 27 parts by weight of dibutylamine are
heated to 150°C in a closed vessel. The 2,4-dioxo-3,3-diethyl-5-dibutylaminomethylene-piperidine formed melts at 77°C after having been recrystallized in
petroleum ether.31 parts by weight of the latter compound are hydrogenated in 150 parts by
volume of alcohol, containing 6 parts by weight of acetic acid, in the presence
of 10 parts by weight of Raney nickel, at 120°C and under an elevated
pressure of 100 atm. The catalyst is separated and the solution is distilled in
vacuo. The 2,4-dioxo-3,3-diethyl-5-methyl-piperidine boils between 178° and
185°C under a pressure of 16 mm and melts at 74° to 75°C.
Therapeutic Function
Sedative, Hypnotic
World Health Organization (WHO)
Methyprylon, a piperidine derivative, was introduced in 1955 for
use as a sedative-hypnotic drug. Habituation, tolerance, physical dependence and
addiction can occur and methyprylon is controlled under Schedule IV of the 1971
Convention on Psychotropic Substances.
(Reference: (UNCPS4) United Nations Convention on Psychotropic Substances (IV),
, , 1971)
Hazard
Abuse may cause addiction.
Check Digit Verification of cas no
The CAS Registry Mumber 125-64-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,2 and 5 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 125-64:
(5*1)+(4*2)+(3*5)+(2*6)+(1*4)=44
44 % 10 = 4
So 125-64-4 is a valid CAS Registry Number.
InChI:InChI=1/C10H17NO2/c1-4-10(5-2)8(12)7(3)6-11-9(10)13/h7H,4-6H2,1-3H3,(H,11,13)