Processes and compounds for preparing histone deacetylase inhibitors and intermediates thereof
申请人:Helquist Paul
公开号:US20070021612A1
公开(公告)日:2007-01-25
Processes for preparing unsaturated esters useful as intermediates for HDAC inhibitors, by reacting an aldehyde or ketone with compounds having the following formula XX:
wherein R
8
is an aliphatic group, an aromatic group, or a combined aliphatic and aromatic group; R
9
and R
10
are each independently hydrogen, an aliphatic group, an aromatic group, a combined aliphatic and aromatic group, or R
10
forms a double bond with L
2
or X
3
; R
11
and R
12
are each independently an aliphatic group, an aromatic group, or a combined aliphatic and aromatic group; L
2
is an aliphatic linking group, an aromatic linking group, or a combined aliphatic and aromatic linking group; A is P or As; L
2
being selected so that the number of carbon atoms directly in the carbon chain between the R
8
and R
9
groups is at least 4, X
1
and X
2
are each independently O or a single bond, and X
3
is O or forms R
13
and double bond with R
10
, wherein R
13
is an aliphatic group, an aromatic group, or a combined aliphatic and aromatic group.
制备作为HDAC抑制剂中间体的不饱和酯的过程,通过将醛或酮与具有以下公式XX的化合物反应:其中R8是脂肪基,芳香基或脂肪基和芳香基的组合;R9和R10分别独立地是氢,脂肪基,芳香基,脂肪基和芳香基的组合,或者R10与L2或X3形成双键;R11和R12分别独立地是脂肪基,芳香基或脂肪基和芳香基的组合;L2是脂肪连接基,芳香连接基或脂肪基和芳香基连接基的组合;A是P或As;选择L2使得R8和R9之间的碳链上直接的碳原子数至少为4,X1和X2分别是O或单键,X3是O或与R10形成R13和双键,其中R13是脂肪基,芳香基或脂肪基和芳香基的组合。