The present invention relates to {HEAD ~ the preparation} of {TAIL ~ pyridinone carboxylic acid aldehydes} such as 5 methoxy 6 4 oxo 1 1,4 dihydropyridine 3 carboxylic acid 
of
The present invention relates to { HEAD ~ the preparation } of { TAIL ~ pyridinone carboxylic acid aldehydes } such as 5 methoxy 6 4 oxo 1 1,4 dihydropyridine 3 carboxylic acid
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH