85614-52-4 Usage
Uses
4-Hydroxy-2-oxo-1-pyrrolidineacetic Acid Methyl Ester is an impurity of the nootropic Oxiracetam (O846905).
Check Digit Verification of cas no
The CAS Registry Mumber 85614-52-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,6,1 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 85614-52:
(7*8)+(6*5)+(5*6)+(4*1)+(3*4)+(2*5)+(1*2)=144
144 % 10 = 4
So 85614-52-4 is a valid CAS Registry Number.
InChI:InChI=1/C7H11NO4/c1-12-7(11)4-8-3-5(9)2-6(8)10/h5,9H,2-4H2,1H3
85614-52-4Relevant articles and documents
New enantioselective synthesis of 4-hydroxy-2-oxopyrrolidine-N-acetamide (oxiracetam) from malic acid
Almeida,Anaya,Martin,Grande,Moran,Cruz Caballero
, p. 1431 - 1440 (2007/10/02)
The enantioselective synthesis of oxiracetam has been accomplished from readily available optically active D(+) and L(-) malic acids. the key step of the described method involves the selective reduction of a chiral cyclic diimide; in this way, both enantiomers of 4-hydroxy-2-oxopyrrolidine-N-acetamides were prepared.