An optically active α hydroxycarboxylic acid derivative represented by general formula is used as a starting material and is allowed to react with {HEAD ~ an azole acetic acid derivative} to produce {TAIL ~ a new, optically active azole alkyl} ketone derivative  
to produce
An optically active α hydroxycarboxylic acid derivative represented by general formula is used as a starting material and is allowed to react with { HEAD ~ an azole acetic acid derivative } to produce { TAIL ~ a new , optically active azole alkyl } ketone derivative
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH