Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2003-10-21
2009-06-09
Valenrod, Yevegeny (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C564S304000, C564S305000
Reexamination Certificate
active
07544840
ABSTRACT:
The compound of formula (III), optionally its alkaline salt, is reacted with a compound of formula VII, wherein X is a leaving group, resulting in (S)-rivastigmine of formula II, which is then optionally converted into (S)-rivastigmine hydrogentartrade of formula I.
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Hajicek Josef
Simek Stanislav
Stepankova Hana
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Valenrod Yevegeny
Zentiva, a.s.
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