Inventor
ANDREW GNANAPRAKASAM
IN4 patents
Patents
4 patentsUS6552213B1Apr 22, 2003
Stereoselective route to produce tris-O-substituted-(E)-1-(3,5-dihydroxyphenyl)-2-(4-hydroxyphenyl)ethene, an intermediate in the synthesis of trans-resveratrol
ORCHID CHEMICALS & PHARM LTD31 citations89
US6936711B2Aug 30, 2005
Process for preparation of penam derivatives from cepham derivatives
ORCHID CHEMICALS & PHARM LTD13 citations79
US6844471B2Jan 18, 2005
Method for the conversion of a Z-isomer into E-isomer
ORCHID CHEMICALS & PHARM LTD6 citations58
US7741478B2Jun 22, 2010
Salts in the preparation of cephalosporin antibiotics
ORCHID CHEMICALS & PHARM LTD0 citations37