The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2006
Filed:
Jan. 13, 2000
John L. Wood, North Haven, CT (US);
Brian M. Stoltz, Auburn, CA (US);
Hans-jurgen Dietrich, Zurich, CH;
Derek A. Pflum, Northville, MI (US);
John L. Wood, North Haven, CT (US);
Brian M. Stoltz, Auburn, CA (US);
Hans-Jurgen Dietrich, Zurich, CH;
Derek A. Pflum, Northville, MI (US);
Yale University, New Haven, CT (US);
Abstract
Indolocarbazoles are furanosylated (e.g.,) with acetals (e.g.,) or their open chain congeners (e.g.,) under conditions known to promote acetal exchange or formation, such as protic or Lewis acids. Furanosylated indolocarbazoles (e.g.,) are also prepared via ring contraction of pyranosylated indolocarbazoles (e.g.,) under conditions know to effect oxidation and benzylic acid type rearrangements, and pyranosylated indolocarbazoles (e.g.,) are prepared via ring expansion of the furanosylated congeners (e.g.,)