(1R,4aS,9aR)-9a-chloro-8-hydroxy-1-methoxy-3-methyl-1,2-bis((trimethylsilyl)oxy)-1,4,4a,9a-tetrahydroanthracene-9,10-dione

methyl 3-methyl-2-trimethylsilyloxybut-2-enoate

(3R,4S,4aS,9aR)-4a,9a-Dichloro-8-hydroxy-4-methoxy-3-methyl-3,4,4a,9a-tetrahydro-1H-anthracene-2,9,10-trione

(1S,4aR,9aS)-8-hydroxy-1-methoxy-3-methyl-1,2-bis((trimethylsilyl)oxy)-1,4,4a,9a-tetrahydroanthracene-9,10-dione

1-Methoxy-3-methyl-1,2-bis(trimethylsiloxy)-1,3-butadiene