Flavan-3-ol-Phenylpropanoid Conjugates from Anemopaegma arvense and their Antioxidant Activities

Nurhayat Tabanca, Rahul Pawar, Daneel Ferreira, Jannie Marais, Shabana Khan, Vaishali Joshi, David Wedge, Ikhlas Khan
2007 Planta Medica  
One of the species of commercially available catuaba was identified as Anemopaegma arvense by comparison of its micromorphological characteristics and TLC profile with six species of authenticated plants that are commonly referred to as catuaba. The bioactivity-guided fractionation of the ethyl acetate extract of the stem bark of this catuaba sample resulted in the isolation of one new (1, catuabin A) and three known flavan-3-ol type phenylpropanoids, cinchonain la (2), cinchonain ha (3) , and
more » ... onain ha (3) , and kandelin Al (4) with antioxidant activities. The structures of these compounds were determined by a combination of spectroscopic techniques. Additionally, these compounds were tested for their anti-inflammatory, cytotoxicity, antimalarial, and antimicrobial activities, where no activity was observed.
doi:10.1055/s-2007-981563 pmid:17642036 fatcat:jo36plj2pvakhctqj7x6ifys5e