carboxynorspermidine + NADP(+) + H2O => L-aspartate 4-semialdehyde + propane-1,3-diamine + NADPH + H(+)
carboxynorspermidine + nadp(+) + h2o => l-aspartate 4-semialdehyde + propane-1,3-diamine + nadph + h(+)