225 Depsides and Depsidones 



Akira Hasimoto, /. Pharm. Soc. Japan 58 776 (in German, 

 221) (1938). (Synthesis) 



473 Imbricaric Acid, C23H28O7, colorless needles, m.p. 125°. 

 CH3CH2CH2CH2H2C 



CH3O OH I COOH 



CH2CH2CH3 



Parmelia perlata Ach., Cladonia impexa Harm., CI. 

 evansi f. Abb., CI. pseudoevansi Asahina 



Yasuhiko Asahina and Itiro Yoshioka, Ber. 70B 1823 

 (1937). (Synthesis) 



474 Ramalinolic Acid, CogHogOy, colorless crystals, m.p. 163°. 



CH,CH,CH, cOO^ OH ^^^^ 



CH3O OH HO CH2CH2CH2CH2CH3 



Ramalina intermediella Wain., R. calicaris Rohl, R. ge- 

 niculata Hook et Tayl. and R. usneoides Mont. 



Yasuhiko Asahina and Tunaharu Kusaka, Ber. 69B 1896 

 (1936). (Synthesis) 



475 Gyrophoric Acid, C24H20O10, colorless needles, m.p. 220°. 

 ^"^ COO OH ^"^ COOH 



HO OH 



Gyrophora esculenta Miyoshi, G. proboscidea L., Um- 

 bilicaria pustulata L. Hoffm. Ochrolechia pallescens, Lo- 

 baria pulmonaria var. meridionalis (Wain.) Zahlbr. 



Yasuhiko Asahina and Itiro Yasioka, Ber. 70B 200 (1937). 

 (Synthesis) 



