The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2026
Filed:
May. 06, 2022
Applicant:
Pharmala Biotech Inc., Vancouver, CA;
Inventor:
Tao Xin, Woodbridge, CA;
Assignee:
PHARMALA BIOTECH INC., Vancouver, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 317/60 (2006.01);
U.S. Cl.
CPC ...
C07D 317/60 (2013.01);
Abstract
The present application includes processes for preparing the (R)- or (S)-enantiomers of 3,4-methylenedioxymethamphetamine (MDMA) and the (R)- or (S)-enantiomers of N-methyl-1,3-benzodioxolylbutanamine (MBDB) starting with the alkyl esters of 3,4-dihydroxy-L-phenylalanine (L-DOPA) or alkyl esters of 3,4-dihydroxy-L-phenylalanine (D-DOPA), respectively. The present application also includes novel intermediate compounds useful in the preparation of the enantiomers of MDMA and MBDB.