Pinguisane and sacculatane terpenoids from the liverwort Porella platyphylla

Buchanan, M. S., Connolly, J. D. and Rycroft, D. S. (1996) Pinguisane and sacculatane terpenoids from the liverwort Porella platyphylla. Phytochemistry, 43(6), pp. 1249-1253. (doi: 10.1016/S0031-9422(96)00513-4)

Abstract

A new pinguisanoic acid sesquiterpenoid derivative, methyl 2α-hydroxy-6-oxo-11-pinguisanoate and a new sacculatane diterpenoid hemiacetal, (5S,9S,10R,13S)-11,13-epoxy-8(12),17-sacculatadiene-13β,15ξ-diol [(13S)-15ξ-hydroxysacculaporellin], have been isolated from the liverwort Porella platyphylla together with three known pinguisanes and the known sacculatane perrottetianal B. Their structures were elucidated from their spectroscopic properties. The stereochemistry of one of the known pinguisanes, β-pinguisenediol, has been revised at C-2 and assigned at C-7. It is suggested that the configuration at C-13 in sacculaporellin, a sacculatane hemiacetal reported previously from P. perrottetiana, should be revised from 13R to 13S.

• Item Type: Articles
• Keywords: Porella platyphylla, Porellaceae, Jungermanniales, Hepaticae, liverwort, pinguisane sesquiterpenoids, sacculatane diterpenoids, 1H and 13C NMR parameters.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Connolly, Professor Joseph and Rycroft, Dr David
• Authors: Buchanan, M. S., Connolly, J. D., and Rycroft, D. S.
• Subjects: Q Science > QD Chemistry; Q Science > QK Botany
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Phytochemistry
• Publisher: Elsevier Science
• ISSN: 0031-9422
• ISSN (Online): 1873-3700