IUPAC:({6-[(1E)-2-{methyl[(3-methyl-1-benzofuran-2-yl)methyl]carbamoyl}eth-1-en-1-yl]-2-oxo-1,2,3,4-tetrahydro-1,8-naphthyridin-1-yl}methoxy)phosphonic acid
IUPAC:({6-[(1E)-2-{methyl[(3-methyl-1-benzofuran-2-yl)methyl]carbamoyl}eth-1-en-1-yl]-2-oxo-1,2,3,4-tetrahydro-1,8-naphthyridin-1-yl}methoxy)phosphonic acid