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Structure of secoswartzianins A and B isolated from the liverwort Porella swartziana

✍ Scribed by Motoo Tori; Katsuyuki Nakashima; Tomoko Takeda; Yoshinori Asakawa

Publisher
Elsevier Science
Year
1993
Tongue
French
Weight
163 KB
Volume
34
Category
Article
ISSN
0040-4039

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✦ Synopsis

Absbue. Secoswartxianins A and B. have been found in P. swarfzia~ collected in Colombig and their armmes dtmmimd to be 3.4-secoafrimt aesquitapenes based on the extensive 2D NMR analyses and chemical mm.

We have been investigating the chemical constituents of liverworts from those collected not only in Japan but also all over the world'. We have encountered the chance to collect the liverwort Porella warrzima in Colombia and started a study on the constituents of this species to isolate a ram a-pyrone type compound,

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