US2010087669A1PendingUtilityA1
Novel phenylboronic acid compounds and intermediates and processes for the preparation thereof
Est. expiryDec 18, 2023(expired)· nominal 20-yr term from priority
C07C 69/76C07F 5/025C07C 39/15C07C 33/20C07C 43/23C07C 401/00
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Claims
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):
Claims
exact text as granted — not AI-modified1 . A compound having the following structural formula (1):
2 . A compound having the following structural formula (2):
in which:
R 5 is an alkyl radical having from1 to 4 carbon atoms.
3 . A compound having the following structural formula (3):
in which
R1 is a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms, and
R2 and R3, which may be identical or different, are each an alkyl radical having from 1 to 4 carbon atoms.
4 . A compound having the following structural formula (10):
in which:
R1 is a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms,
R2 and R3, which may be identical or different, are each an alkyl radical having from 1 to 4 carbon atoms, and
R′ 1 is an alkyl radical having from 1 to 4 carbon atoms.Join the waitlist — get patent alerts
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