(3aR,4S,5R,6aS)-5-(Tetrahydro-pyran-2-yloxy)-4-(tetrahydro-pyran-2-yloxymethyl)-hexahydro-cyclopenta[c]furan-1-ol 、
乙炔基溴化镁 生成 (S)-1-[(1S,2S,3S,4R)-2-Hydroxymethyl-4-(tetrahydro-pyran-2-yloxy)-3-(tetrahydro-pyran-3-yloxymethyl)-cyclopentyl]-propynol 、 (R)-1-[(1S,2S,3S,4R)-2-Hydroxymethyl-4-(tetrahydro-pyran-2-yloxy)-3-(tetrahydro-pyran-3-yloxymethyl)-cyclopentyl]-propynol