(E)-caffeoyl-CoA + putrescine <=> N-caffeoylputrescine + CoA + H(+)
(e)-caffeoyl-coa + putrescine <=> n-caffeoylputrescine + coa + h(+)
(E)-caffeoyl-CoA + putrescine <=> N-caffeoylputrescine + CoA + H(+)
(e)-caffeoyl-coa + putrescine <=> n-caffeoylputrescine + coa + h(+)