Patent · US Expired

3,9-dihydroxynonyne and its derivatives protected at the 9-OH function

US4965376A · kind A · utility

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2Claims
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Assignee

Inventors

Key dates

Filing dateApr 18, 1989
Grant dateOct 23, 1990
Priority date
Expiry dateApr 18, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/55
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

3,9-Dihydroxynonyne and its derivatives protected at the 9-OH function, of the general formula I ##STR1## where R is hydrogen or a conventional alcohol protective group, and processes for the preparation of the compounds I.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.