A new phenylpropanoid glycoside, ballotetroside, has been isolated fro
m the aerial parts of Ballota nigra. On the basis of chemical and spec
tral data, its structure has been established as (3, hydroxyphenyl)-2-
ethyl[alpha-L-arabinopyranosyl-(1 --> 2)-alpha-L-rhamnopyranosyl-(1 --
> 3)]-beta-D-apiofuranosyl-(1 --> 6)-4-O-caffeoyl-beta-D-glucopyranosi
de. Copyright (C) 1997 Elsevier Science Ltd.