spermidine + acetyl-CoA = N(1)-acetylspermidine + CoA + H(+)
spermidine + acetyl-coa = n(1)-acetylspermidine + coa + h(+)
spermidine + acetyl-CoA = N(1)-acetylspermidine + CoA + H(+)
spermidine + acetyl-coa = n(1)-acetylspermidine + coa + h(+)