1 1 7 Polyenes and Polyynes, Excluding Polyene Macrolides 



222 Methyl 10-(Deca-fra72S-2,frflns-8-diene-4,6-diyn-l-oyloxy)-dec-trans- 



2-ene-4,6-diynoate, CoiHi^O,, colorless plates, m.p. 91-93°, 

 U.V. 223, 246.5, 259", 287, 305, 334 m^u in ethanol. 



CHs— CH=CH— C=C— C=C— CH^CH— COO— CH2— CH2— CHo— C=C— C=C 



— CH=CH— COOCH3 



Polyporus anthracophilus 



J. D. BuLock, E. R. H. Jones and W. B. Turner, 7. Chem. 

 Soc, 1607 (1957). 



223 Cortisalin, C^iHoiiO;^, violet-red needles, m.p. dec. >290°, U.V. 



(318),"345 (420), 443 (462) m^a in pyridine. 



HO-Q- 



Corticium salicinum Fries 



A yield of 2.6 g. of crude material was obtained from 

 222 g. of fungal fruiting body. 



Jarl Gripenberg, Acta Chem. Scand. 6 580 (1952). 



D. Marshall and M. C. Whiting, /. Chem. Soc, 537 (1957). 

 ( Synthesis ) 



224 Limocrocin, CosH^^OqN^, a yellow actinomycete pigment. Dark 

 red crystals from AcOH m.p. 316° (dec). Dimethyl ester 

 of perhydo-deriv., fine, colorless needles, m.p. 146-147°. 

 Partial structure: 



O 



\ 

 HO— C\^v^^^?\^::r\^:;\^^;;\^~v^^:^v^ ^NHfCsHjONlCOOH 



C 



A demethylcrocetin derivative with the CsHjON probably a 

 heterobicycHc residue. Eq. wt. 225 (232). 



Streptomyces limosus (Glycine-glycerol substrate) 

 Hans Brockmann and Hans-Ulrich May, Chem. Ber. 88 419 

 (1955). 



Hans Brockmann and Gerhard Grothe, Chem. Ber. 86 1110 

 (1953). 



