, Angew. Chem. Int. Ed. Engl, vol.2, pp.1-11, 1963.
, Helv. Chim. Acta, vol.48, 1965.
, J. Am. Chem. Soc, vol.91, pp.2815-2816, 1969.
, Chem. Ber, vol.127, pp.2327-2335, 1993.
, J. Org. Chem, vol.58, pp.1295-1297, 1993.
, Bull. Chem. Soc. Jpn, vol.70, pp.2215-2219, 1997.
, Angew. Chem. Int. Ed, vol.53, pp.5504-5523, 2014.
, Angew. Chem. Int. Ed. Engl, vol.56, pp.8663-8666, 2017.
, Angew. Chem. Int. Ed, vol.44, pp.7624-7627, 2005.
, Helv. Chim. Acta, vol.48, pp.2159-2165, 1983.
, Eur. J. Org. Chem, vol.8, pp.1568-1577, 2005.
, J. Am. Chem. Soc, vol.51, pp.3002-3004, 1929.
, Eur. J. Org. Chem, pp.1107-1114, 1997.
, Bull. Chem. Soc. Jpn, vol.59, pp.3603-3605, 1986.
, J. Am. Chem. Soc, vol.133, pp.774-776, 2011.
, Comprehensive Heterocyclic Chemistry, vol.7, pp.9301-9320, 1984.
, Phytochemistry, vol.17, pp.235-251, 1978.
, J. Org. Chem, vol.63, pp.2808-2809, 1998.
, Tetrahedron, pp.5702-5708, 2009.
, Tetrahedron Lett, vol.41, pp.7505-7511, 2000.
, J. Chem. Soc, vol.1952, pp.1799-1803, 1953.
, Chem. Ber, pp.553-565, 1958.
, Biosci. Biotechnol. Biochem, vol.223, pp.840-846, 1969.
, Crystallographic data of compounds 22 and 24 are available free of charge at the Cambridge Crystallographic Data Centre under number CCDC 1890832 and 1890833, respectively
, Synthesis, vol.18, pp.3085-3091, 2006.
, J. Chem. Soc, pp.3001-3006, 1956.
, Adv. Synth. Catal, vol.350, pp.1090-1100, 2008.
, Lancet Oncol, vol.16, p.443, 2015.
,
, J. Natl. Cancer Inst, vol.110, pp.509-516, 2018.