Hydrogenation of precursors to thiazolidinedione...

Details Hydrogenation of precursors to thiazolidinedione... Hydrogenation of precursors to thiazolidinedione...

2006-01-31

2006-01-31

Saeed, Kamal A. (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C514S342000, C514S369000, C546S280400, C548S183000

Reexamination Certificate

active

06992191

ABSTRACT:
Provided is a method of hydrogenating the exocyclic double bond of a thiazolidinedione precursor in a method of making a thiazolidinedione antihyperglycemic, for example pioglitazone, including work-up steps to afford pure thiazolidinedione antihyperglycemic.

REFERENCES:
patent: 5002953 (1991-03-01), Hindley
patent: 5710152 (1998-01-01), Nagao et al.
patent: 5952509 (1999-09-01), Saito et al.
patent: 6248363 (2001-06-01), Patel et al.
J. Cossy et al., “A Short Synthesis of Troglitazone: An Antidiabetic Drug for Treating Insulin Resistance,” Bioorganic and Medicinal Chemistry Letters 9, pp. 3439-3440 (1990).
Shigeo Nishimura,Handbook of Heterogeneous Catalytic Hydrogenation for Organic Synthesis, Chapter 1, pp. 1-51 (2001).

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