CHEN et al. v BOUCHARD et al. - Page 17



          Interference No. 103,675                                                      

    multiplicity; mass spectrum analysis; and, an empirical formula.                    
              The compound obtained in Example 2 is defined as "white                   
    amorphous solid" and being a 1:1 mixture of "- and ß-isomers of the                 
    named compound. Also included are characteristic NMR spectra as                     
    identified by chemical shifts compared to deuterated chloroform as an               
    internal standard.                                                                  
              The compound prepared in Example 3 is described as a "white               
    solid". There are also included the NMR characteristics defined by the              
    chemical shifts for the compound compared to deuterated chloroform as               
    an internal standard. According to the description of how the compound              
    of Example 3 was synthesized, the "- and ß-isomers were separated by                
    high pressure liquid chromatography (HPLC).                                         
              Intermediate compound IIIa prepared according to Example 4                
    is described as an "amorphous solid." According to the description of               
    the synthesis in the example, the NMR spectra for compound IIIa was                 
    "essentially identical to that reported in Example 2." Upon                         
    deprotection of the 2'-position in compound IIIa 7-"-fluorotaxol was                
    obtained. Although no NMR data are set forth in the example, the NMR                
    spectra was said to be "consistent for the structure."  The calculated              
    molecular weight (856.3344) for the sample was substantially the same               
    as the molecular weight as determined by mass spectrum (856.3367).                  
              In Example 5, the named product obtained is described as a                
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