Chemical and Pharmaceutical Bulletin p. 2360 - 2362 (1994)
Update date:2022-09-26
Topics:
Ohta
Hinata
Kawasaki
Yamashita
2-Methylamino-3-(1-piperidinylmethyl)-1,4 (7) was prepared via several steps from 2-methyl-1,4-naphthoquinone (vitamin K3 3). The quinone (7) was photochemically oxidized to 2-methylamino-3-(1-piperidinylcarbonyl)-1,3-naphthoquinone (8) and/or 2-alkoxycarbonyl-3-methylamino-1,4-naphthoquinone (9), depending on the solvent used.
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