Formoterol tartrate polymorph

Details Formoterol tartrate polymorph Formoterol tartrate polymorph

2006-12-05

2006-12-05

Kumar, Shailendra (Department: 1621)

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

Organic compounds

Amino nitrogen containing

C564S220000, C564S221000, C514S629000, C514S630000

Reexamination Certificate

active

07145036

ABSTRACT:
A method of preparation of a highly pure salt of R,R-formoterol L-tartrate is disclosed. The process provides the most thermodynamically stable polymorph by recrystallization of a novel polymorph.

REFERENCES:
patent: 6472563 (2002-10-01), Tanoury et al.

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