Toluene-4-sulfonic acid (Z)-(R)-2-((1aR,3aR,3bS,5aS,6R,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-6-methyl-5-trimethylsilanyl-hept-4-enyl ester

(23Z)-24-bromo-6β-methoxy-21-tosyloxy-3α,5-cyclo-5α-cholest-23-ene

1-bromo-4-methyl-pent-2-yne

(Z)-3-bromo-4-methylpent-2-en-1-ol

5-butyl-3-hydroxy-4-isopropyl-5-methylfuran-2(5H)-one