四氢-2H-吡喃-2-醇

顺-4-(四氢吡喃-2-氧)-2-丁烯-1-醇

2-((Z)-4-(tetrahydro-2H-pyran-2-yloxy)but-2-enyloxy)-tetrahydro-2H-pyran

2(5H)-呋喃酮

4-(4-nitrophenoxy)butanoic acid