Inventor
WANG ZHI-XIAN
CA16 patents
⚠️ This page may combine multiple inventors who share the name “WANG ZHI-XIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
APOTEX PHARMACHEM INC
9 patentsUS7767843B2Aug 3, 2010
Process for the preparation of phenylcarbamates
APOTEX PHARMACHEM INC2 citations61
US7196197B2Mar 27, 2007
Process for the preparation of Flecainide, its pharmaceutically acceptable salts and important intermediates thereof
APOTEX PHARMACHEM INC2 citations61
US7902380B2Mar 8, 2011
Process for the preparation of (S)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide and (R)-alpha-ethyl-2-oxo-pyrrolidineacetamide
APOTEX PHARMACHEM INC4 citations60
US7485754B2Feb 3, 2009
Efficient method for preparing 3-aryloxy-3-arylpropylamines and their optical stereoisomers
APOTEX PHARMACHEM INC3 citations60
US7884121B2Feb 8, 2011
Process for the preparation of phenylcarbamates
APOTEX PHARMACHEM INC2 citations57
US7531658B2May 12, 2009
Process for the preparation of 17-N-substituted-carbamoyl-4-aza-androst-1-en-3-ones
APOTEX PHARMACHEM INC2 citations56
US8378143B2Feb 19, 2013
Methods of making Efavirens and intermediates thereof
APOTEX PHARMACHEM INC0 citations48
US7939665B2May 10, 2011
Efficient process for the preparation of cabergoline and its intermediates
APOTEX PHARMACHEM INC0 citations48
US7365201B2Apr 29, 2008
Process for the preparation of the boron difluoride chelate of quinolone-3-carboxylic acid
APOTEX PHARMACHEM INC0 citations44
BRANTFORD CHEM INC
3 patentsUS6600044B2Jul 29, 2003
Process for recovery of the desired cis-1,3-oxathiolane nucleosides from their undesired trans-isomers
BRANTFORD CHEM INC14 citations79
US6407262B1Jun 18, 2002
Process for the preparation of Ramipril
BRANTFORD CHEM INC8 citations65
US6642384B1Nov 4, 2003
Preparation of chiral 1,2,3,4-tetrahydro-6,7-dialkoxy-3-isoquinolinecarboxylic acid and derivatives
BRANTFORD CHEM INC0 citations40
BRATOVANOV SVETOSLAV S
2 patentsUS8080663B2Dec 20, 2011
Process for the preparation of 2-methylspiro(1,3-oxathiolane-5,3′)quiniclidine
BRATOVANOV SVETOSLAV S0 citations42
US8143400B2Mar 27, 2012
Process for the preparation and purification of cis-2-methylspiro(1,3-oxathiolane-5,3′)quiniclidine hydrochloride
BRATOVANOV SVETOSLAV S0 citations39