2,2-Di-substituted 1alpha,25-dihydroxy-19-norvitamin D...

Details 2,2-Di-substituted 1alpha,25-dihydroxy-19-norvitamin D... 2,2-Di-substituted 1alpha,25-dihydroxy-19-norvitamin D...

2008-07-22

2008-07-22

Qazi, Sabiha N. (Department: 1612)

Organic compounds -- part of the class 532-570 series

Organic compounds

9,10-seco-cyclopentanohydrophenanthrene ring system or...

C514S167000, C549S200000

Reexamination Certificate

active

07402688

ABSTRACT:
A novel 2,2-di-substituted 19-norvitamin D derivative. It is a compound represented by the general formula (I) wherein R1 and R2 are the same or different and each represents hydroxy and A represents hydrogen, or an unsubstituted linear or branched alkyl.

REFERENCES:
patent: 6566352 (2003-05-01), DeLuca et al.
patent: 6627622 (2003-09-01), DeLuca et al.
patent: 0619306 (1994-10-01), None
patent: WO 01/07405 (2001-02-01), None
patent: WO 01/74765 (2001-10-01), None
patent: WO 01/74766 (2001-10-01), None
patent: WO 01/92221 (2001-12-01), None
Shimizu, Masato et al. (DN 142:392562, CAPLUS, abstract of Bioorganic & Medicinal Chemistry Letters (2005), 15(5), 1451-1455).

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