Reaction catalyzed by sinapoylglucose-sinapoylglucose O-sinapoyltransferase (2.3.1.103)
+
=
+
1-feruloyl-beta-D-glucose
+
1-feruloyl-beta-D-glucose
=
1,2-di-O-feruloyl-beta-glucopyranose
+
glucose