参考文献

Mulzer, Johann; Schein, Karin; Bats, Jan W.; Buschmann, Juergen; Luger, Peter Angewandte Chemie - International Edition, 1998, vol. 37, # 11 p. 1566 - 1569 doi: 10.1002/(SICI)1521-3773(19980619)37:11<1566::AID-ANIE1566>3.0.CO;2-U