(3R,4R,4aR,6'R,7S)-4-[15-(allyloxycarbonyl)pentadecyloxycarbonyl]-1,2,3,4,4a,5,6,7-octahydro-1-oxo-7-(2-oxoethyl)pyrrolo[1,2-c]pyrimidine-3-spiro-2'-(6'-methyl)-3',4',5',6'-tetrahydro-2H-pyran

5-[(p-methoxy)benzyloxyl]-2-pentynal

(S)-hydroxy-1-(4-methoxybenzyloxy)-3-heptyne

(S)-1-(4-methyloxybenzyloxy)-5-triisopropylsiloxy-3-heptyne

(S)-2-Hydroxy-5-(2-hydroxy-ethyl)-pyrrolidine-1-carboxylic acid amide