Stahl, P., & Waldmann, H. (1999). Asymmetric synthesis of the nakijiquinones - Selective inhibitors of the Her-2/Neu protooncogene. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 38(24), 3710-3713. doi:10.1002/(SICI)1521-3773(19991216)38:24<3710:AID-ANIE3710>3.3.CO;2-8.