3.2 Other Meroterpenes and Prenylated Polyketides
The fungus Penicillium oxalicum, obtained from the green alga Codium fragile
collected from the Qingdao coastline, produced 15-hydroxydecaturin A (270)
(Fig. 16) following fermentation of the fungus on solid rice medium
O
O
N
O
OH
O
270 (15-hydroxydecaturin A)
HO
Cl
O
O
O
O
OH
OH
OH
271 (phomaketide A)
Cl
O
O
O
O
OH
272 (phomaketide B)
O
O
O
O
O
O
273 (phomaketide C)
O
O
O
O
274 (phomaketide D)
O
O
OH
HO
O
O
O
O
275 (phomaketide E)
OH
OH
OH
O
O
HO
277 (truncateol B)
R
O
OH
O
C
OH
O
O
HO
276 (truncateol A)
C
OH
O
O
HO
278 (truncateol C)
Cl
OH
R
OH
O
C
HO
O
OH
O
281 (truncateol F)
C
Cl
OH
HO
OH
O
284 (truncateol I)
Cl
Cl
HO
OH
O
C
285 (truncateol J)
HO
Cl
OH
O
C
OH
286 (truncateol K)
HO
OH
O
C
287 (truncateol L)
OH
O
O
O
Cl
OH
HO
OH
OH
OH
289 (truncateol N)
288 (truncateol M)
O
O
HO
OH
CH 2 OH
290 (cytosporin D)
O
OH
HO
CH 2 OH
291 (cytosporin E)
O
O
O
292 R = O (pleosporallin F)
293 R = NH (pleosporallin G)
O
R
O
O
O
279 R = -OH (truncateol D)
280 R = -OH (truncateol E)
282 R = -OH (truncateol G)
283 R = -OH (truncateol H)
OH
Fig. 16 Structures of other meroterpenes and prenylated polyketides (part 1)
Secondary Metabolites from Marine-Derived Fungi from China
107