18-Malonyloxy-9-epi-ent-isopimarol, a diterpene from Calceolaria glandulosa

Chamy, 1987, Phytochemistry Navis, 1979, 105 Nicoletti, 1986, Gazz. Chim. Ital., 116, 431 Nicoletti, 1987, Phytochemistry Bohlmann, 1979, Phytochemistry, 18, 1993, 10.1016/S0031-9422(00)82718-1 Kalinowski, 1984 Wenkert, 1972, J. Am Chem. Soc., 94, 4367, 10.1021/ja00767a070 Wenkert, 1973, J. Am. Chem. Soc., 95, 4990, 10.1021/ja00796a035 Kato, 1977, J. Chem. Soc. Perkin I, 250, 10.1039/p19770000250 Breitmaier, 1978 Harding, 1975, J. Org. Chem., 40, 1664, 10.1021/jo00899a040 Zalkow, 1964, J. Org. Chem., 29, 1299, 10.1021/jo01029a006 House, 1972 Orsini, 1977, Tetrahedron Letters, 1085, 10.1016/S0040-4039(01)92837-0 Tsunakawa, 1976, Chem. Letters, 1157, 10.1246/cl.1976.1157 On'okoko, 1985, Tetrahedron, 41, 745, 10.1016/S0040-4020(01)96452-X On'okoko, 1985, Phytochemistry, 24, 2452, 10.1016/S0031-9422(00)83067-8 Toghbi, 1981, Phytochemistry, 20, 1669, 10.1016/S0031-9422(00)98552-2 Ackland, 1982, J. Chem. Soc. Chem. Commun., 165, 10.1039/c39820000165 Riche, 1982, 7th Eur. Crystallogr. Meet., 25 Sheldrick, 1976