A facile chemoenzymatic route to enantiomerically pure oxiranes: building blocks for biologically active compounds
作者:Ulrich Goergens、Manfred P. Schneider
DOI:10.1039/c39910001064
日期:——
The enantiomerically purebuildingblocks (R)-and (S)-1–4 were prepared both by enantioselective, enzymatic hydrolysis and by acyl transfer, and subsequently converted into the corresponding enantiomerically pure oxiranes (R)- and (S)-7 and 8.
In one aspect, the present invention provides for a compound of Formula I
in which in Formula I, the variables X
1
, X
2a
, X
2b
, X
2c
, R
1
, B, L, E, A and the subscript n are as defined herein. In another aspect, the present invention provides for pharmaceutical compositions comprising compounds of Formula I as well as methods for using compounds of Formula I for the treatment of diseases and conditions (e.g., cancer, thrombocythemia, etc) characterized by the expression or over-expression of Bcl-2 anti-apoptotic proteins, e.g., of anti-apoptotic Bcl-x
L
proteins.
In one aspect, the present invention provides for a compound of Formula I
in which in Formula I, the variables X1, X2a, X2b, X2c, R1, B, L, E, A and the subscript n are as defined herein. In another aspect, the present invention provides for pharmaceutical compositions comprising compounds of Formula I as well as methods for using compounds of Formula I for the treatment of diseases and conditions (e.g., cancer, thrombocythemia, etc) characterized by the expression or over-expression of Bcl-2 anti-apoptotic proteins, e.g., of anti-apoptotic Bcl-xL proteins.