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2-methylene-19-nor-(23S)-25-dehydro-1α-hydroxyvitamin D3-26,23-lactone and 2-methylene-19-nor-(23R)-25-dehydro-1α-hydroxyvitamin D3-26,23-lactone

  • US 7,235,680 B2
  • Filed: 03/28/2006
  • Issued: 06/26/2007
  • Est. Priority Date: 03/29/2005
  • Status: Active Grant
First Claim
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1. A compound having the formula 1A, 1B, or a mixture thereof,

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