Methods for producing amino substituted chromanes and...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C549S407000

Reexamination Certificate

active

06855833

ABSTRACT:
Disclosed are processes for producing chromane compounds, preferably chroman-2-yl acetic acid compounds and 6-amino-chroman-2-yl acetic acid esters which are intermediates for producing platelet aggregation inhibitors and/or are themselves potent platelet aggregation inhibitors.

REFERENCES:
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Wulff, et al., Über die Eignung Verschiedener Aldehyde und Ketone als Haftgruppen für Monoalkohole,Chem Ber., 119, 1876-1889 (1986), XP001037635.
Buehler, et al., “2-Hydroxy-5-Nitrobenzyl Chloride,” Org., Synth., vol. 20, 1940, pp. 59-61.
T. Inoue, et al., “A New Synthesis of o-Quinonemethides and Their Inter-and Intramolecular Cyclization Reactions,” Bull. Chem. Soc. Jpn, vol. 63, pp. 1062-1068 (1990).

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