5-O-(4-coumaroyl)-D-quinate 3'-monooxygenase activity
5-o-(4-coumaroyl)-d-quinate 3'-monooxygenase activity
Catalysis of the reaction: O2 + NADPH + H+ + trans-5-O-(4-coumaroyl)-D-quinate = H2O + NADP+ + trans-5-O-caffeoyl-D-quinate.