ID 2.3.1.131 DE glucarate O-hydroxycinnamoyltransferase. CA (E)-sinapoyl-CoA + D-glucarate = 2-O-[(E)-sinapoyl]-D-glucarate + CoA. CC -!- 4-coumaroyl-CoA, feruloyl-CoA and caffeoyl-CoA can also act as CC donors, more slowly. //