TN1266

3-O-Methylquercetin is a selective and competitive PDE3/PDE4 inhibitor, and inhibits PDE3 than PDE4 with a low K(m) value; it inhibits total cAMP- and cGMP-phosphodiesterase (PDE) of guinea pig trachealis at low concentrations.

(2Z)-6-[(3aS,9aS,11aS)-1-hydroxy-3a,6,6,9a,11a-pentamethyl-7-oxo-1H,2H,3H,3aH,4H,5H,5aH,6H,7H,8H,9H,9aH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]-2-methylhept-2-enoic acid is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

11-(acetyloxy)-3-hydroxy-4,5,14,15,16-pentamethoxy-9,10-dimethyltricyclo[10.4.0.0^{2,7}]hexadeca-1(12),2(7),3,5,13,15-hexaen-8-yl (2Z)-2-methylbut-2-enoate is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

(2Z,6R)-6-[(4aR,6bR,9R,10aR,11bS)-11a-hydroxy-4,4,6b,11b-tetramethyl-10-methylidene-3,7-dioxo-hexadecahydro-1H-cyclohexa[a]fluoren-9-yl]-2-methylhept-2-enoic acid is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

(2Z,6R)-6-[(3aR,9aS,11aR)-11-(acetyloxy)-3b-hydroxy-3a,6,6,9a,11a-pentamethyl-7-oxo-1H,2H,3H,3aH,3bH,4H,5H,5aH,6H,7H,8H,9H,9aH,11H,11aH-cyclopenta[a]phenanthren-1-yl]-2-methylhept-2-enoic acid is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

(2Z,6R)-6-[(4aR,6bR,9R,11bS)-6-hydroxy-4,4,6b,11b-tetramethyl-10-methylidene-3-oxo-1H,2H,3H,4H,4aH,5H,6H,6bH,7H,8H,9H,10H,10aH,11H,11bH-cyclohexa[a]fluoren-9-yl]-2-methylhept-2-enoic acid is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

(2Z,6R)-6-[(3aR,9aS,11aR)-3a-(hydroxymethyl)-6,6,9a,11a-tetramethyl-7-oxo-3H,3aH,4H,5H,5aH,6H,7H,8H,9H,9aH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]-2-methylhept-2-enoic acid is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

(2Z)-6-[(3aR,9aS,11R)-1-hydroxy-3a,6,6,9a,11-pentamethyl-7-oxo-1H,2H,3H,3aH,4H,5H,5aH,6H,7H,8H,9H,9aH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]-2-methylhept-2-enoic acid is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

(2Z,6S)-6-[(3aR,9aS,11R)-3a,6,6,9a,11-pentamethyl-7-oxo-1H,2H,3H,3aH,4H,5H,5aH,6H,7H,8H,9H,9aH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl]-6-hydroxy-2-methylhept-2-enoic acid is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

(1R,3S,5S,6aR,7S,8S,10R,10aR)-1,3-bis(acetyloxy)-5-hydroxy-7,8-dimethyl-7-[(2E)-3-methylpenta-2,4-dien-1-yl]-1H,3H,5H,6H,6aH,7H,8H,9H,10H-naphtho[1,8a-c]furan-10-yl octanoate is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.

(1R,3S,5S,6aR,7S,8S,10R,10aR)-1,3-bis(acetyloxy)-10-hydroxy-7,8-dimethyl-7-(3-methylidenepent-4-en-1-yl)-1H,3H,5H,6H,6aH,7H,8H,9H,10H-naphtho[4,4a-c]furan-5-yl octanoate is a high-purity biochemical reagent suitable for biochemical experiments and drug synthesis research.