共 13 条
[1]
ADJE N, 1993, TETRAHEDRON LETT, V34, P4205
[4]
DERAADT AA, 1992, J CHEM SOC P1, P3179
[8]
JOHNSON F, 1973, ORG SYN, V5, P614
[9]
KATRITZKY AR, 1989, SYNTHESIS-STUTTGART, P949