tetrahydro-2-[[3-(2-ethynylphenyl)-2-propyn-1-yl]oxy]-2H-pyran

tetrahydro-2-[[4-(2-ethynylphenyl)-2-methyl-3-butyn-2-yl]oxy]-2H-pyran

5-iodopentanoic acid

缬草酸

5-氯戊酸