772283-93-9 Usage
Uses
4-(N-Phenylamino)-4-carboxypiperidine is an intermediate in the synthesis of Remifentanil Ester Hydrochloride (R143515), a controlled substance, an Opioid. Remifentanil Esters are used as intermediates in the synthesis of isothiocyanate derivatives of carfentanils and (methoxymethyl)fentanyls which are opioid δ receptor irreversible inhibitors.
Check Digit Verification of cas no
The CAS Registry Mumber 772283-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,2,2,8 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 772283-93:
(8*7)+(7*7)+(6*2)+(5*2)+(4*8)+(3*3)+(2*9)+(1*3)=189
189 % 10 = 9
So 772283-93-9 is a valid CAS Registry Number.
772283-93-9Relevant articles and documents
PROCESS FOR SYNTHESIZING REMIFENTANIL
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Page/Page column 23, (2008/06/13)
A process for synthesizing remifentanil or carfentanil, as well as intermediates for use in the preparation of synthetic opiate or opioid compounds. The process comprising reacting a 4-amino 4-carbamyl piperidine with a base in a closed reaction chamber at elevated temperature and pressure to form to intermediate which may be esterified with an alcohol, alkylated, and acylated to produce a synthetic opiate or opioid compound.
