Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1997-04-11
1998-09-15
Wilson, James O.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 282, 536 2852, 536 2853, C07H 19073
Patent
active
058080481
ABSTRACT:
This invention provides a process for preparing gemcitabine hydrochloride which comprises deblocking .beta.-1-(2'-deoxy-2',2'-difluoro-3',5'-di-O-benzoyl-D-ribofuranosyl)-4-am inopyrimidin-2-one with a catalytic amount of an alkylamine in the presence of methanol or ethanol in an environment essentially free of water; treating the resulting solution with hydrochloric acid and an antisolvent; and recovering the resulting solid gemcitabine hydrochloride.
REFERENCES:
patent: 3817978 (1974-06-01), Jenkins et al.
patent: 4472386 (1984-09-01), Kodama et al.
patent: 4526988 (1985-07-01), Hertel
patent: 4808614 (1989-02-01), Hertel
patent: 4965374 (1990-10-01), Chou et al.
patent: 5223608 (1993-06-01), Chou et al.
patent: 5637688 (1997-06-01), Berglund
Barrett Brian P.
Boone David E.
Eli Lilly and Company
Wilson James O.
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