Process for preparation of S-(-)-betaxolol and salts thereof

Details Process for preparation of S-(-)-betaxolol and salts thereof Process for preparation of S-(-)-betaxolol and salts thereof

2006-03-28

2006-03-28

Davis, Brian (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

07019172

ABSTRACT:
The present invention relates to an improved process for preparation of S-(−)-betaxolol salts. More particularly the present invention relates to the preparation of hydrochloride salt of S-(−)-betaxolol of formula (1)

REFERENCES:
patent: 4760182 (1988-07-01), Ippolito et al.
patent: 4990668 (1991-02-01), Mai et al.
patent: 5731463 (1998-03-01), Wang et al.
patent: 5942633 (1999-08-01), Wang et al.
Manoury et al., Journal of Medicinal Chemistry (1987), 30(6), p. 1003-1011.
Database CAPLUS on STN, Acc. No. 2004:825286, Rao et al., IN 184973 (Oct. 14, 2000) (abstract).

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