Two New Cleistanthane Diterpenes and a New Isocoumarine from Cultures of the Basidiomycete Albatrellus confluens

Zhong-Yu Zhou; Rong Liu; Meng-Yuan Jiang; Ling Zhang; Yun Niu; Ying-Cheng Zhu; Ze-Jun Dong; Ji-Kai Liu

doi:10.1248/cpb.57.975

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Two New Cleistanthane Diterpenes and a New Isocoumarine from Cultures of the Basidiomycete Albatrellus confluens

Zhong-Yu Zhou, Rong Liu, Meng-Yuan Jiang, Ling Zhang, Yun Niu, Ying-Cheng Zhu, Ze-Jun Dong, Ji-Kai Liu

Author information

Zhong-Yu Zhou
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences
Graduate School of the Chinese Academy of Sciences
Rong Liu
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences
Graduate School of the Chinese Academy of Sciences
Meng-Yuan Jiang
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences
Graduate School of the Chinese Academy of Sciences
Ling Zhang
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences
Graduate School of the Chinese Academy of Sciences
Yun Niu
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences
Graduate School of the Chinese Academy of Sciences
Ying-Cheng Zhu
Anhui Key Laboratory of Modernized Chinese Materia Medica, Anhui College of Traditional Chinese Medicine
Ze-Jun Dong
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences
Ji-Kai Liu
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences

Keywords: Albatrellus confluens, cleistanthane, isocoumarine, aurovertin, polyester

JOURNAL FREE ACCESS

2009 Volume 57 Issue 9 Pages 975-978

DOI https://doi.org/10.1248/cpb.57.975

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Abstract

Two new cleistanthane-type diterpenes, 3α,5α,8β-trihydroxycleistanth-13(17),15-dien-18-oic acid (1) and 8β-hydroxy-18-norcleistanth-4(5),13(17),15-trien-3-one (2), a new isocoumarine, 3R-(2R-hydroxypropyl)-8-hydroxyl-7-methyl-3,4-dihydroisocoumarine (3), along with three known aurovertins, aurovertins B (4), C (5) and E (6), four known polyesters, orbuticin (7), BK223A (8), BK223B (9) and 15G256α-2-me (10), and a known isocoumarine, 3R-6-hydroxymellein (11), were isolated from cultures of the basidiomycete Albatrellus confluens. The structures of these compounds were established on the basis of spectroscopic and chemical methods.

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