甲醇

(S)-1,1',1''-[[[2-(2-propenyloxy)-4-pentenyl]oxy]methylidyne]tris[benzene]

(S)-4-benzyloxy-2-(2-benzyloxyethoxy)-1-trityloxybutane

(2S)-2-(trityloxymethyl)-3,6-dihydro-2H-pyran

二氯甲烷