(+)-sesamin monocatechol + (6R)-5,10-methylenetetrahydrofolyl-(gamma-L-Glu)(n) => (+)-sesamin + (6S)-5,6,7,8-tetrahydrofolyl-(gamma-L-Glu)(n)
(+)-sesamin monocatechol + (6r)-5,10-methylenetetrahydrofolyl-(gamma-l-glu)(n) => (+)-sesamin + (6s)-5,6,7,8-tetrahydrofolyl-(gamma-l-glu)(n)