Evidence-Based Complementary and Alternative Medicine / 2021 / Article / Tab 1 / Research Article
The Hydroalcoholic Extract of Uncaria tomentosa (Cat’s Claw) Inhibits the Infection of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) In Vitro Table 1 LC/MS phytochemical analysis of the hydroalcoholic extract of U. tomentosa .
Peak Compounds of cat’s claw t R (min)m /z (M + H)+ Molecular formula Chemical structure Spirooxindole alkaloids 1 Speciophylline 4.82 369.18018 C21 H24 N2 O4 1 Isopteropodine 4.82 369.18018 C21 H24 N2 O4 1 Isomitraphylline 4.82 369.18018 C21 H24 N2 O4 1 Uncarine F 4.82 369.18018 C21 H24 N2 O4 1 Mitraphylline 4.82 369.18018 C21 H24 N2 O4 1 Pteropodine 4.82 369.18018 C21 H24 N2 O4 2 Rhynchophylline 4.99 385.21127 C22 H28 N2 O4 3 Isorynchophylline 5.19 385.21140 C22 H28 N2 O4 Indole glycoside alkaloids 3 3-Dihydrocadambine 4.03 547.22992 C27 H34 N2 O10 Quinovic acid glycosides 4 QAG-1 4.84 957.50458 C48 H77 O19 4 QAG-2 4.84 957.50458 C48 H77 O19 Proanthocyanidins 5 Proanthocyanidin C1 4.17 867.21191 C45 H38 O18 6 Epiafzelechin-4β -8 4.25 563.15460 C30 H26 O11 7 Proanthocyanidin B2 4.01 579.15002 C30 H26 O12 7 Proanthocyanidin B4 4.01 579.15002 C30 H26 O12 8 Epicatechin 4.15 291.08588 C15 H14 O6 9 Chlorogenic acid 3.95 355.10220 C16 H18 O9