Revision of the Structures of Citrifolinin A, Citrifolinoside, Yopaaoside A, Yopaaoside B, and Morindacin, Iridoids from Morinda citrifolia L. and Morinda coreia Ham.

Citrifolin A was revised to dehydromethoxygaertneroside (2). Citrifolinoside and yopaaoside A were found to be identical, and their structures were revised to the new structure dehydroepoxymethoxygaertneroside (5). Yopaaoside B was revised to citrifolinoside A (9), and morindacin was revised to borreriagenin (11).