(E)-20 (22)-dehydrodiels-alder compounds

• US 5,536,828 A
• Filed: 05/16/1995
• Issued: 07/16/1996
• Est. Priority Date: 11/03/1993
• Status: Expired due to Fees

• Current Assignee: Wisconsin Alumni Research Foundation (University of Wisconsin System)
• Original Assignee: Wisconsin Alumni Research Foundation (University of Wisconsin System)
• Inventors: Sicinski, Rafal R., Deluca, Hector F.
• Primary Examiner(s): PRIOR, KIMBERLY
• Application Number:
  US08/441,827
• Time in Patent Office: 427 Days
• Field of Search: 540/95, 552/582, 552/599, 556/407
• US Class Current: 540/95
• CPC Class Codes: A61P 43/00 Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
• CPC Class Codes: C07C 401/00 Irradiation products of cholesterol or its derivatives; Vitamin D derivatives, 9,10-seco cyclopenta[a]phenanthrene or analogues obtained by chemical preparation without irradiation
• CPC Class Codes: C07J 71/0042 Nitrogen only

Abstract

The invention discloses Diels-Alder adducts of the following structure: ##STR1## The compounds are useful as intermediates in the production of (E)-20(22)-Dehydrovitamin D compounds.

Claims

1. A compound having the formula:

##STR12## where Y¹ is hydrogen or a hydroxy-protecting group and R¹ is hydroxy a protected hydroxy.