申请人:Yu Bruce
公开号:US20090259020A1
公开(公告)日:2009-10-15
Disclosed are compounds having the structure:
wherein R
1a
and R
1b
are independently H, alkyl, F, or fluoroalkyl; wherein R
2a
, R
2b
, R
2a′
, and R
2b′
are independently H, alkyl, F, fluoroalkyl, aryl, or alkenyl; wherein R
3
is OH, alkoxyl, NH
2
, alkylamino, or dialkylamino; wherein R
4a
and R
4b
are independently H, alkyl, acyl, or alkyloxycarbonyl; wherein R
11
, R
12
, R
13
, R
21
, R
22
, and R
23
are independently H, alkyl, F, or fluoroalkyl; and wherein C0, C1, C2, and C2′ are independently chiral or achiral. Also disclosed are processes for making a fluorinated β-amino acid comprising the steps of: providing a diol; treating the diol with a thionyl halide with oxidative workup; reacting the product with an azide salt to yield an azido group; oxidizing the product to yield a carboxyl group; and reducing the azido group to yield an amino group. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.