Plagiochila acanthophylla

Plagiochila acanthophylla subsp. japonica. Taylorione (294), a congener of myliol (295) in the liverwort Mylia taylorii, has been assigned the seco-aromadendrane structure (294) on the basis of chemical and spectroscopic evidence.127... 

The nor-ketone rudbeckianone (244) has been identified in Rudbeckia lacini-ata A very interesting new sesquiterpenoid ketone, (+)-bicyclohumulenone (245), has been isolated from the leafy liverwort Plagiochila acanthophylla subsp. japonica The structure and absolute stereochemistry of this compound were ascertained by X-ray crystallographic analysis of the mono-p-bromobenzoate of the derived triol (246). This ketone co-occurs with the two enantiomeric sesquiterpenoids (-)-maalioxide (247) and (+)-cyclocolerenone (248). 

Hashimoto T, Tori M, Asakawa Y (1987) Sacculaplagin, a new highly oxidized sacculatane diterpenoid hemiacetal from the liverwort Plagiochila acanthophylla subsp. japonica. Tetrahedron Lett 28 6293-6294... 

Plagiochila acanthophylla ssp. japonica contains a new humulane-type sesquiterpene ketone, bicyclohumulenone (453), together with cyclo-colorenone (38) and maalioxide (455) 234, 240). The absolute stereo-... 

Plagiochila acanthophylla ssp. japonic a Camphene a-Pinene P-Pinene... 

Matsuo, A., M. Nakayama, S. Sato, T. Nakamoto, S. Uto, and S. Hayashi (—)-Maalioxide and (+)-Cyclocolorenone, Enantiomeric Sesquiterpenoids from the Liverwort, Plagiochila acanthophylla japonica. Experientia 30, 321 (1974). 

Matsuo, A., H. Nozaki, M. Nakayama, Y. Kushi, S. Hayasih, T. Komobh, and N. Kamijo (-f )-Bicyclohumulenone, a Novel Sesquiterpene Ketone of the Humulane Group from Plagiochila acanthophylla subsp. japonica (Liverwort) X-Ray Crystal and Molecular Structure of the /7-Bromobenzoate Derivative. Chem. Commun. 1979, 174. 

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