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Serving hundreds of leading biopharmaceutical companies globally:

Covington
Fish and Richardson
Fuji
Chinese Patent Office
Merck
Mallinckrodt
Farmers Insurance
Medtronic
Julphar

Generated: April 24, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,935,946

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Which drugs does patent 5,935,946 protect, and when does it expire?

Patent 5,935,946 protects VIREAD, ATRIPLA, COMPLERA, STRIBILD, and TRUVADA, and is included in six NDAs.

Protection for VIREAD has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has fifty patent family members in twenty countries.
Summary for Patent: 5,935,946
Title: Nucleotide analog composition and synthesis method
Abstract:The invention provides a composition comprising bis(POC)PMPA and fumaric acid (1:1). The composition is useful as an intermediate for the preparation of antiviral compounds, or is useful for administration to patients for antiviral therapy or prophylaxis. The composition is particularly useful when administered orally. The invention also provides methods to make PMPA and intermediates in PMPA synthesis. Embodiments include lithium t-butoxide, 9-(2-hydroxypropyl) adenine and diethyl p-toluenesulfonylmethoxyphosphonate in an organic solvent such as DMF. The reaction results in diethyl PMPA preparations containing an improved by-product profile compared to diethyl PMPA made by prior methods.
Inventor(s): Munger, Jr.; John D. (Alviso, CA), Rohloff; John C. (Mountain View, CA), Schultze; Lisa M. (San Carlos, CA)
Assignee: Gilead Sciences, Inc. (Foster City, CA)
Application Number:08/900,752
Patent Claim Types:
see list of patent claims
Composition; Compound; Formulation; Use; Dosage form; Process;

Drugs Protected by US Patent 5,935,946

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Gilead Sciences Inc VIREAD tenofovir disoproxil fumarate POWDER;ORAL 022577-001 Jan 18, 2012 RX Yes Yes ➤ Sign Up ➤ Sign Up ➤ Sign Up
Gilead Sciences ATRIPLA efavirenz; emtricitabine; tenofovir disoproxil fumarate TABLET;ORAL 021937-001 Jul 12, 2006 RX Yes Yes ➤ Sign Up ➤ Sign Up ➤ Sign Up
Gilead Sciences Inc COMPLERA emtricitabine; rilpivirine hydrochloride; tenofovir disoproxil fumarate TABLET;ORAL 202123-001 Aug 10, 2011 RX Yes Yes ➤ Sign Up ➤ Sign Up ➤ Sign Up
Gilead Sciences Inc STRIBILD cobicistat; elvitegravir; emtricitabine; tenofovir disoproxil fumarate TABLET;ORAL 203100-001 Aug 27, 2012 RX Yes Yes ➤ Sign Up ➤ Sign Up ➤ Sign Up
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Serving hundreds of leading biopharmaceutical companies globally:

Citi
AstraZeneca
Teva
McKinsey
Dow
Chinese Patent Office
Colorcon
Mallinckrodt
Fish and Richardson

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