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US 5,859,279 AGranted
Compound and process
AssigneeDarwin Discovery, Ltd.
InventorsRobin Mark Bannister, Graham Evans
Life of this patent
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Abstract
A process for the preparation of a compound of formula (VI), optionally in enantiomerically-enriched form (R or S), comprises chemoselective reduction of a novel compound of formula (V), wherein Ar.sup.1 and Ar.sup.2 are independently selected from optionally-substituted aromatic or heteroaromatic groups having upto 20 C atoms, Ak is C.sub.1-20 alkyl, and R is H or C.sub.1-20 alkyl. ##STR1##
Claims10
A compound of formula (V),
- wherein AR.sup.1 and AR.sup.2 are independently selected from optionally-substituted aromatic groups having up to 20 carbon atoms, Ak is C.sub.1-20 alkyl, and R is H or C.sub.1-20 alkyl.
Dependencies are inferred from the claim text.