Search Results
) Error (ppm) Formula 1 2.92 169.01425 169.01499 4.4 C 7 H 6 O 5
Hz, H-9), 6.65–6.78 (3H, m, H-2’, H-5’, H-6’), 5.94 (2H, s, –O–CH 2 –O–); 13 C-NMR (CDCl 3 , 400 MHz): δ 197.20 (C-4), 191.12 (CHO-6), 168.28 (C-10), 167.17 (C-5), 164.80 (C-7), 148.05 (C-4’), 146.63 (C-3’), 130.87 (C-1’), 122.13 (C-6’), 109.42 (C-2
] + ; 1 H-NMR (600 MHz, CDCl 3 ) δ : 7.48 (brs, 1 H), 7.34 (d, J = 8.79 Hz, 1 H), 7.32 (s, 2H), 6.85 (d, J = 2.05 Hz, 1 H), 6.78 (dd, J = 8.64, 2.20 Hz, 1 H), 5.06 (ddd, J = 11.64, 9.45, 4.98 Hz, 1H), 4.48 (br. s., 1H), 3.92 (s, 9 H), 3.91 (m, 1H
[ 37 ] 4 aconitic acid 1.16 174.0164 175.0235 −1.0 [M+H] + C 6 H 6 O 6 175.1191,130.0994,116.0747, 104.0508 organic acids [ 37 ] 5 Uridine 1.18 244.0695 245.0774 2.3 [M+H] + C 9 H 12 N 2 O 6 245.1161,217.0954,142.0891,113.0371 nucleoside [ 38 ] 6 L
, dd, J = 9.2, 2.0 Hz, H-6′), 6.87 (1H, d , J = 8.8 Hz, H-5′), 6.36 (1H, d, J = 2.0 Hz, H-8), 6.19 (1H, d, J = 2.0 Hz, H-6); sugar: δ (ppm): 5.34 (1H, d, J = 7.2 Hz, H-1″), 4.39 (1H, d, J = 2.8 Hz, H-1″′), 3.17–3.64 (9H, m, H-2″- H-6″, H-2
addition of metal ion dopants such as Ga [ 5 ] and Ru [ 6 ], adding C 2 H 6 [ 7 ] or CO 2 as the co-feed of methane, [ 8 ], dealumination treatment for modifying the acidic properties of zeolite [ 9 ], silanation of external acid sites in H-ZSM5 [ 10
H12 O6 D-(−)-Quinic acid 17 2.633 [M − H]−1 180.06339 2.17 179.056650,89.02470,75.00900,59.01400 C6 H12 O6 D-(−)-Fructose 18 2.679 [M − H]−1 174.01644 0.79 173.00958,154.99913,111.00911,85.02976 C6 H6 O6 trans-Aconitic acid 19 2.685 [M − H]−1 168
edible oil. Following an oral dose of 50 mg/kg, 300 μL of blood samples was drawn from rat tail vein. Samples were obtained at 10 min, 30 min, 1 h, 2 h, 4 h, 6 h, 8 h, 10 h, 12 h, 24 h, and 36 h. Method Validation
) from m / z 384, m / z 338 (loss of C 2 H 6 O) from m / z 384, and m / z 352 (loss of CH 4 O) from m / z 384 are visible in the MS/MS spectrum ( Fig. 6A ). The hypothesized fragmentation pathway was constructed using chemdraw software from the
terpenoids were all obtained as white amorphous powder. Dihydrokaempferol ( 1 ): ESI–MS, m/z 311.3 [M + Na] + . 1 H-NMR (DMSO- d 6 , 400 MHz) δ : 4.58 (1H, d, J = 11.2 Hz, H-3), 5.04 (1H, d, J = 11.2 Hz, H-2), 5.86 (1H, s, H-6), 5.91 (1H, s
