Laurencienyne

2β-[(S)-1-Bromopropyl]-5β,7α-dichloro-8α-[(E)-2-penten-4-ynyl]oxocan-4α-ol acetate

2β-[(S)-1-Bromopropyl]-5β,7α-dichloro-8α-[(E)-2-pentene-4-ynyl]oxocane-4α-ol acetate