brevianamide F + dimethylallyl diphosphate <=> deoxybrevianamide E + diphosphate
brevianamide f + dimethylallyl diphosphate <=> deoxybrevianamide e + diphosphate
brevianamide F + dimethylallyl diphosphate <=> deoxybrevianamide E + diphosphate
brevianamide f + dimethylallyl diphosphate <=> deoxybrevianamide e + diphosphate