Intermediates in the preparation of therapeutic fused...

Details Intermediates in the preparation of therapeutic fused... Intermediates in the preparation of therapeutic fused...

2006-03-28

2006-03-28

Dentz, Bernard (Department: 1625)

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing oxygen-containing organic compound

C435S135000, C435S128000, C560S119000, C562S501000

Reexamination Certificate

active

07018818

ABSTRACT:
The invention presents compounds of formula (I),where R represents H or a suitable carboxylic acid protecting group, which are intermediates in the preparation of therapeutic fused bicyclic amino acids.

REFERENCES:
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patent: WO 99/21824 (1999-05-01), None
patent: WO 01/28978 (2001-04-01), None
patent: WO 02/085839 (2002-10-01), None
Wallquist et al, Helvetica Chimica Acta, 1983, 66(6) 1876-90.
Snider et al, J. Org. Chem. 1986, 51, pp3643-3652.
Lortie, Biotechnology Advances, vol. 15(1), p. 1-15 (1997).
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Hoffman., H.M.R., et al. “Synthesis of Cyclobutylideneaccetic Esters Via Aluminum Chloride Promoted [2+2] Cycloadditions of Ethyl 2,3-Butadienoate to Olefin+” Tetrahedron Letters, vol. 22, No. 21, pp 1953-1956, 19881.
B. B. Snider, et al., “Lewis Acid Catalyzed Inter- and Intramolecular [2+2 Cycloadditions of Conjugated Allenic Esters”, Journal of Organic Chemistry, 1986, pp 3643-3652, vol. 51, No. 19.
O. Wallquist, et al. “Conversion of Bicyclo [3.2.0]hept-2-en-6-on in Cyclopentadienylacetic Acid Derivatives”, 1983, pp 1876-1889, vol. 66, No. 6.

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