TABLE 7

Mass spectral fragmentation and structures of zoniporide and proposed metabolites

Structure[M + H]+Fragment Ions
ZoniporideEmbedded Image321262234220
M1Embedded Image337278250236
M2Embedded Image296278250
M3Embedded Image280262234
M4Embedded Image337320278261250
M5Embedded Image353336294277266
M6Embedded Image513337278
M7 and M10Embedded Image337278250
M8Embedded Image355296278254250236
M9Embedded Image531472355296278