4-nitrophenyl-3-ketovalidamine <=> 5D-(5/6)-5-C-(hydroxymethyl)-2,6-dihydroxycyclohex-2-en-1-one + 4-nitroaniline
4-nitrophenyl-3-ketovalidamine <=> 5d-(5/6)-5-c-(hydroxymethyl)-2,6-dihydroxycyclohex-2-en-1-one + 4-nitroaniline