{TAIL ~ The R enantiomer} may be prepared in {HEAD ~ an analogous fashion} by replacing the S enantiomer of the compound of formula IX depicted in scheme 3 and referred to in Example 3A with the corresponding R enantiomer  
{ TAIL ~ The R enantiomer } may be prepared in { HEAD ~ an analogous fashion } by replacing the S enantiomer of the compound of formula IX depicted in scheme 3 and referred to in Example 3A with the corresponding R enantiomer
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH