Table 2.

Structures of natural fluorescent type‐I phyllobilins (FCCs, top section) and type‐II phyllobilins (DFCCs, iso‐DFCC, bottom section): labels R^1, R², and R⁴ refer to the generalized formula of FCCs (with atom numbering), shown in Figure 15.

No.[a]	R1	R2	R4	C16[b]	Provisional names[c]	Ref.
22	H	H	H	n	At‐FCC‐2	60
6	H	CH3	H	n	Bn‐FCC‐2 (pFCC)	25, 60
epi ‐6	H	CH3	H	epi	Ca‐FCC‐2 (epi‐pFCC)	47
24	OH	H	H	n	At‐FCC‐1	60
23	OH	CH3	H	n	32‐OH‐pFCC	27
epi ‐23	OH	CH3	H	epi	Mc‐FCC‐62	51
23‐Me	OH	CH3	CH3	epi	Mc‐FCC‐71[e]	51
epi ‐41	OH	CH3	5′‐daucyl[f]	epi	Mc‐FCC‐56	28a
epi ‐42	OH	CH3	4′‐daucyl[g]	epi	Mc‐FCC‐53	28a, 85
25	OH	CH3	[h]	n	Sw‐FCC‐62	74
epi ‐25	OH	CH3	[h]	epi	Ma‐FCC‐69	76
epi ‐26	OH	CH3	[i]	epi	Ma‐FCC‐61	28b
epi ‐27	OH	CH3	[j]	epi	Ma‐FCC‐63	76
epi ‐28	OH	CH3	[k]	epi	Ma‐FCC‐64	76
epi ‐43	O‐Glc[d]	CH3	5′‐daucyl[f]	epi	Mc‐FCC‐49	85
epi ‐44	O‐Glc[d]	CH3	4′‐daucyl[g]	epi	Mc‐FCC‐46	85
45	O‐Glc[d]	CH3	H	n	AtMES‐FCC	67
34	OH	H	H	n	At‐DFCC‐33	26c
35	OH	CH3	H	n		27
40	H	CH3	H	n	AtMES‐2HM‐iso‐DFCC	26a

[a] Compound numbering (see text), R³=vinyl. [b] Relative configuration at C16: n=normal, that is, derived from pFCC, or epi=epimeric, that is, derived from epi‐pFCC. [c] Bn‐FCC‐2 (from oilseed rape, B. napus),25 Ca‐FCC‐2 (from sweet pepper, C. annuum),47 At‐FCCs (from A. thaliana),60 Mc‐FCCs (from banana peels),28a, 51 Ma‐FCCs (from banana leaves, M. acuminata, Cavendish cultivar),28b, 76 and Sw‐FCC‐62 (from senescent leaves of S. wallisii).74 [d] Glc=β‐glucopyranosyl. [e] Apparently an artefact from the methanolysis of persistent FCC daucyl esters. [f] Daucic acid bound at 5′‐OH. [g] Daucic acid bound at 4′‐OH. [h] R⁴=6‐β‐glucopyranosyl‐(1‐1′)‐2‐[3,4‐dihydroxyphenyl]ethyl. [i] R⁴=6‐α‐galactopyranosyl‐(1‐6)‐β‐galactopyranosyl‐(1‐1)‐glyceryl. [j] R⁴=6‐β‐glucopyranosyl. [k] R⁴=6‐α‐glucopyranosyl.