共 20 条
[11]
KERN E, Patent No. 228549
[12]
KERN E, Patent No. 231358
[13]
LEUPOLD EO, Patent No. 964046
[14]
MCKENNA CE, 1977, TETRAHEDRON LETT, V2, P155
[15]
MCKENNA MC, 1979, J CHEM SOC CHEM COMM, P739
[16]
MORITA T, 1978, TETRAHEDRON LETT, V28, P2523
[17]
NOLLER CR, 1966, CHEM ORGANIC COMPOUN, P321
[18]
RANDALL DI, Patent No. 2050245
[19]
SHI J, 1991, CHEM ABSTR 29635Q, V115
[20]
YOUNG KW, Patent No. 8702363