(E)-methyl-6-[(tetrahydro-2H-pyran-2-yl)oxy]-hex-2-en-oate

3,4-二氢-2H-吡喃

2-pent-4-enoxyoxane

2-(3-氯丙氧基)四氢-2H-吡喃

2-(4-戊炔氧基)四氢-2H-吡喃