Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2008-09-02
2008-09-02
Seaman, D. Margaret (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C548S454000, C549S467000, C549S491000
Reexamination Certificate
active
11054371
ABSTRACT:
A process for preparing optically active 2,3-dihydrobenzofuran compounds which comprises subjecting a 2,3-dihydrobenzofuran compound represented by the general formula or a salt thereof to optical resolution with an optically active acid compound:[wherein R1and R2are each hydrogen or an optionally substituted hydrocarbon group; R3is an optionally substituted aromatic group; and C is a benzene ring which may further have a substituent in addition to the amino group]. The process enables industrially advantageous production of intermediates for the synthesis of optically active 2,3-dihydrobenzofuran compounds useful as preventive and/or therapeutic drugs for neurodegenerative diseases and so on.
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Adachi Mari
Aoki Isao
Sera Misayo
Tawada Hiroyuki
Yamashita Makoto
Chandrakumar Nizal S
Conlin David G.
Edwards Angell Palmer & & Dodge LLP
Hazzard Lisa Swiszcz
Seaman D. Margaret
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