Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-02-21
2006-02-21
Tsang, Cecilia J. (Department: 1625)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C546S224000
Reexamination Certificate
active
07001915
ABSTRACT:
The subject invention encompasses compounds of the formula:wherein R1, R2, and R3are as defined herein. The subject invention also concerns methods for synthesizing the compounds of the invention. The invention also concerns compositions comprising the above compounds as well as methods for treating pain in a patient, where the method comprises administering a compound of the invention to a patient in need of such treatment.
REFERENCES:
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James et al. “Opioid receptor activity of G 87084B, a novel ultra-short ancting analgesic, in isolated tissues,”Journal of Pharmacology and Experimental Therapeutics(1991), vol. 259, No. 2, pp. 712-718.
Lutz, M. et al. “A pharmacodynamic model to investigate the structure-activity profile of a series of novel opioid analgesics,”Journal of Pharmacology and Experimental Therapeutics(1994), vol. 271, No. 2, pp. 795-803, abstract only.
Yang, Yulong et al. “Anesthetic effect of some 4-substitued fentanyl derivatives in mice,” Database CA [Online] Chemical Abstracts Service, Columbus, Ohio, US; retrieved from STN Database accession No. 130: 32672 (abstract) & Huaxi Yaoxue Zazhi (1998), 13(2), 80-82.
ARYx Therapeutics, Inc.
Boehnen McDonnell
Covington Raymond
Hulbert & Berghoff LLP.
Tsang Cecilia J.
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