Isolation of Betulin and Erithrodiol from White-birdlime : Prepared from Ilex integra^<*1>

モチノキ（Ilex integra THUNBERG）から得られる白モチよりBetulin及びErithrodiolの単離

Isolation of Betulin and Erithrodiol from White-birdlime : Prepared from Ilex integra^<*1>

Creators Hironaka Takashi

Creators Yamada Masahisa

Creators Ezaki Satoshi

Creators Nishino Katsuya

Creators Ide Akio

Creators Yagishita Kazuyoshi

White-birdlime,named “Shiromochi”, was treated with 10% KOH EtOH solution to give unsaponifiable substances. From them, unidentified two compounds were isolated in addition to previously known triterpenoids, α-amyrin, β-amyrin, lupeol, and bauerenol. Structures of the isolated compounds were determined to be erythrodiol and betulin, from physicochemical properties and chemical reactions. From the results, all of triterpenoids containing in White-Birdlime were isolated and their structures were made clear after all.

[ISSN]0513-1715

[NCID]AN00244250