NATU RALLY OCCURRING CAROTENOIDS 31 



CH3 CH3 



C CH3 CH, 



/\ \V 



CH2 C==CH CH, CH, CH3 CH3 C 



I i M I \ .\ /\ 



CH2 C CH-C=CHCH=CH-C=CHCH=CHCH=C-CH=CHCH = C-CH=CH-C CHj 



HjC-C CH2 

 Mutatochrome=Citroxanthin \ / 



CH, 



CH3 CH3 CH3 CH3 



\V \V 



CH, CH, CH, CH, C 



CH2 C-CH=CH-C=CHCH=CH-C=CHCH=CHCH=C-CH=CHCH=C-CH=CH-CH CH^ 

 CH, C/^ H,C-C CH, 



^ a-Carotene epoxide X / 



CH, CH, CH 



CH3 CH, CH, CH, 



y I I I I V 



CH CH-CH=CH-C=CHCH=CH-C=CHCH=CHCH=C-CH=CHCH=C-CH=CH-CH CH 



CH2 C-CHg HjC-C CHOH 



\ y" Lycoxanthin \ / 



CH, CH» 



CH3 CH, CH3 CH, 



\V \V 



y 1 ' ! I I \ 



CH CH-CH=CH-C=CHCH=CH-C=CHCH=CHCH=C-CH=CHCH=C-CH=CH-CH CH 



HOCH C-CHa HjC-C CHOH 



\/ Lycophyll \/ 



CHo CHo CHq OxIq 



\V \V 



CH CH3 CH3 CH3 CH3 CH 



y i I I I \ 



CH2 CH-CH=CH-C = CHCH=CH-C=CHCH = CHCH=C-CH=CHCH=C-CH=CH-CH CH^ 



H3COC C-CH3 H3C-C COCH3 



\/ Rhodoviolascin(?) \ /" 



CH CH 



