4-Dehydroxy-3-dehydro-pitavastatin lactone-d5

4-Dehydroxy-3-dehydro-pitavastatin lactone-d5 is the deuterium labeled (S,E)-6-(2-(2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl)vinyl)-5,6-dihydro-2H-pyran-2-one (Pitavastatin Impurity） (HY-Z3610).