Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1998-01-05
1999-01-05
Richter, Johann
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546213, 546248, 548574, 548951, 548953, C07D21120, C07D20712
Patent
active
058564926
ABSTRACT:
An efficient method for the quantitative preparation and isolation of a compound of formula I ##STR1## or its enantiomer, a chiral mediator used in enantioselective synthesis.
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Chen Cheng Yi
Tillyer Richard D.
Xu Feng
Zhao Dalian
Camara Valerie J.
Daniel Mark R.
Merck & Co. , Inc.
Richter Johann
Sackey Ebenezer
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