Demethylmoracin I → (2S)-Euchrenone A7

Beteiligte Stoffe

Rolle	Name	HCID	Einwaage
Edukt	Demethylmoracin I	HCID 641375	—
Edukt	(2S)-5,7,2',4'-tetrahydroxyflavanone	HCID 10356745	—
Edukt	2-Propen-1-one, 1-[2,4-dihydroxy-3-(3-methyl-2-butenyl)phenyl]-3-(2,4-dihydroxyphenyl)-, (E)-; (2E)-1-[2,4-Dihydroxy-3-(3-methyl-2-buten-1-yl)phenyl]-3-(2,4-dihydroxyphenyl)-2-propen-1-one	HCID 69906284	—
Lösungsmittel	Methanol	HCID 887	—
Produkt	(2S)-Euchrenone A7	HCID 44593508	—

Reaktionsschritte

Bright yellow powder; UV (MeOH) λmax (log ε) 286 (3.99), 207 (4.41) nm; 1H NMR (CD3COCD3, 500 MHz) δ 1.61 (3H, s, H-4″), 1.65 (3H, s, H-5″), 2.72 (1H, dd, J=3.0 and 16.7 Hz, H-3), 2.95 (1H, dd, J=13.3 and 17.0 Hz, H-3), 3.34 (1H, brd, H-1″), 5.26 (1H, m, H-2″), 5.69 (1H, brd, J=10.3 Hz, H-2), 6.43 (1H, brd, J=8.4 Hz, H-5′), 6.48 (1H, brd, H-3′), 6.62 (1H, d, J=8.6 Hz, H-6), 7.36 (1H, d, J=8.5 Hz, H-6′), 7.59 (1H, d, J=8.6 Hz, H-5); EIMS m/z 324 (M+, 9), 322 (24) 279 (47), 191 (19), 205 (10), 176 (14), 161 (26), 149 (43), 45 (100).

Herkunft & Nachweise

DOI	10.6084/m9.figshare.5104873.v1
Patentnummer	US06737439B2
Quelldatensatz	uspto-grants-2004_05
ORD ID	ord-046df113696c4cb39ac0d7d08cc9d197
Quellennotiz	uspto-grants-2004_05