Diwu, Tet. Letters 1998, 39 (28), 4987-90. |
Scott et al., JACS, 1973, 95, 2708-09. |
Merour et al., Tet. Letters 1991, 32 (22), 2469-70. |
Kihara et al., Chem. Pharm. Bull. 1994, 42:67-73. |
Ogawa et al., Chem. Pharm. Bull. 1992, 40:1315-1317. |
Rival et al., Chem. Pharm. Bull. 1992, 40:1170-1176. |
Konosu et al., Chem Pharm. Bull. 1990, 38:2476-2486. |
Laufer et al., J. Med. Chem. 1994, 37:1894-1897. |
Rosen et al., J. Med. Chem. 1990 33:3020-3023. |
Bull et al., Tet Letters 1973, (44):4349-4352. |
Posner et al., J. Amer. Chem. Soc. 1973, 95:3076-3077. |
Lehman, Tet. Letters 1976, 987-988 (Translation plus original). |
Bakos et al., Steroids 1993, 58 115-118. |