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Last Updated: April 13, 2024

Details for Patent: 6,562,861


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Summary for Patent: 6,562,861
Title: Substituted cyclopentane and cyclopentene compounds useful as neuraminidase inhibitors
Abstract:##STR1## Compounds I-III wherein U is CH, O, or S; Z is mono- or di-substituted carbon; R is (CH2)nCO2H, (CH2)nSO3H, (CH2)nPO3H2, (CH2)nNO2, CH(SCH3)3, esters; R1 is H, hydroxyalkyl, aminoalkyl, alkoxyalkyl; RR1 is O; n is 0-4; R2, R3 is H, hydroxyalkyl, aminoalkyl, alkoxyalkyl, haloalkyl; R4 is (CH2)nOH, (CH2)nNH2, substituted alkyl were prepd. as neuraminidase inhibitors. Thus, (1R,3R,4R,1'S)-(-)-(1'-acetylamino-2 '-ethyl)butyl-4-(aminoimino)methylaminocyclopentan-1-carboxylic acid was prepd. and tested in vitro as neuraminidase inhibitor (IC50<1.mu.M).
Inventor(s): Babu; Yarlagadda S. (Birmingham, AL), Chand; Pooran (Birmingham, AL), Montgomery; John A. (Birmingham, AL)
Assignee: BioCryst Pharmaceuticals, Inc. (Birmingham, AL)
Application Number:09/555,131
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

Drugs Protected by US Patent 6,562,861

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 6,562,861

PCT Information
PCT FiledDecember 17, 1998PCT Application Number:PCT/US98/26871
PCT Publication Date:July 08, 1999PCT Publication Number: WO99/33781

International Family Members for US Patent 6,562,861

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 016162 ⤷  Try a Trial
Austria 425955 ⤷  Try a Trial
Australia 2200199 ⤷  Try a Trial
Brazil 9813480 ⤷  Try a Trial
Canada 2315262 ⤷  Try a Trial
China 1282316 ⤷  Try a Trial
Cyprus 1109153 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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