| 摘要 |
<p>A process for the preparation of a compound of the Formula Iwhereinthe process comprising the step of treating a compound of the Formula IIwith a fluorinating agent at a temperature of about 60° to about 120° C. in the presence of an organic solvent to form a compound of the Formula I; wherein:X, R or R' can optionally be independently protected with a protecting group which is substantially stable to the fluorinating agent; and where X, R, and R' are described herein.</p> |
