Divergent Synthesis of 17-nor-Cephalotane Diterpenoids through Developed Ynol-diene Cyclization

The diversity of complex molecular structures of Cephalotaxus diterpenoids poses great challenges in uncovering the pharmaceutical potential of these natural products. As a subfamily of Cephalotaxus diterpenoids, 17-nor-cephalotane diterpenoids possess polycyclic frameworks with seven-membered A ring bearing different oxidation states. On the basis of a novel ynol-diene cyclization developed as a rapid access to tropone unit, a concise and divergent strategy to 17-nor-cephalotane diterpenoids has been successfully established. Combining with a bioinspired stereoselective dual hydrogenation, the enantioselective total synthesis of (+)-3-deoxyfortalpinoid F, (+)-harringtonolide, (−)-fortalpinoids M/N/P, and analog (−)-20-deoxycephinoid P have been achieved in 14-17 linear longest steps starting from commercially available materials..

Medienart:

Preprint

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

chemRxiv.org - (2024) vom: 12. Apr. Zur Gesamtaufnahme - year:2024

Sprache:

Englisch

Beteiligte Personen:

Sun, Zezhong [VerfasserIn]
Shu, Xin [VerfasserIn]
Ma, Fuli [VerfasserIn]
Li, Ao [VerfasserIn]
Li, Yali [VerfasserIn]
Jin, Shuang [VerfasserIn]
Wang, Yunxia [VerfasserIn]
Hu, Xiangdong [VerfasserIn]

Links:

Volltext [kostenfrei]

Themen:

540
Chemistry

doi:

10.26434/chemrxiv-2024-85cxs-v2

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XCH043251757