Phenylboronic acid compounds and intermediates and processes...

Details Phenylboronic acid compounds and intermediates and processes... Phenylboronic acid compounds and intermediates and processes...

2006-06-19

2010-02-09

Shiao, Rei-tsang (Department: 1626)

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

Organic compounds

Borate esters

C562S007000

Reexamination Certificate

active

07659421

ABSTRACT:
Vitamin D derivatives, notably non-steroidal vitamin D derivatives, are prepared from novel disubstituted phenylboronic acid compounds having the formula (I):and also from the novel intermediates having the formulae (1), (2), (3) and (10):

REFERENCES:
patent: 2002/0143024 (2002-10-01), Murugesan et al.
patent: 2008/0019915 (2008-01-01), Hadida-Ruah et al.
patent: WO 03/050067 (2003-06-01), None
Hadida-Ruah et al., 2008, CAS: 148:191855.
Butler et al., 2006, CAS: 144:468206.
International Search Report issued in PCT/FR2004/003192 dated Apr. 6, 2005.

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