p. 6463 - 6472
(2007/10/02)1-tert-Butoxy-3-<(trimethylsilyl)oxy>butadiene
4-tert-Butoxy-3,4,4a,5a,11a,12a-hexahydro-1H-naphthacene-2,5,6,11,12-pentaone
3-[(1,1-dimethylethyl)oxy]cyclobutanone
1,4,6,6a,7,8,9,10,10a,11-decahydro-5,12-dihydroxy-7-(1,1-dimethylethoxy)-1,4-ethanonaphthacene-6,9,11(10H)-trione
1,4,9,10-tetrahydro-5,8-dihydroxy-9,10-dioxo-1,4-ethanoanthracene