^{1}H-NMR spectra of water extract of healthy *C. roseus* leaves (A) and phytoplasma (UDINESE)-infected *C. roseus* leaves (B) in the range of *δ* 6.0 to *δ* 8.0, and HMBC spectra of water fraction of phytoplasma (UDINESE)-infected (C) *C. roseus* leaves. In ^{1}H-NMR spectra (A and B): 1, H-7′ of chlorogenic acid; 2 and 3, H-3 of secologanin; 4, H-2′ of chlorogenic acid; 5, H-6′ of chlorogenic acid; 6, H-3 of loganic acid; 7, H-5′ of chlorogenic acid and aromatic signals of polyphenols; 8, fumaric acid; 9, H-8′ of chlorogenic acid; ^{*}, possible signals of chlorogenic acid derivatives. In HMBC spectra (C): 1, correlation of H-3 and C-5 of secologanin; 2, correlation of H-3 and C-1 of secologanin; 3, correlation of H-3 and C-4 of secologanin; 4, correlation of H-3 and carbonyl group of secologanin; 5, correlation of H-7′ and C-2′ of chlorogenic acid; 6, correlation of H-7′ and C-6′ of chlorogenic acid; 7, correlation of H-7′ and carbonyl group of chlorogenic acid; 8, correlation of H-3 and C-5 of loganic acid; 9, correlation of H-3 and C-1 of loganic acid; 10, correlation of H-3 and C-4 of loganic acid; 11, correlation of correlation of H-3 and carbonyl group of loganic acid; 12, correlation of H-2′ and C-1′ of chlorogenic acid; 13, correlation of H-2′ and C-3′; 14, correlation of H-2 and C-1 of gallic acid derivatives; 15, correlation of H-2 and C-3 of gallic acid derivatives; 16, correlation of H-2 and carbonyl group of fumaric acid; 17, correlation of H-8′ and C-1′ of chlorogenic acid; 18, correlation of H-8′ and carbonyl group of chlorogenic acid.

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