1-Amino-7-vinyl-4a,5,6,7-tetrahydro-4,7-dimethylpyrrolo[1,2-c]pyrimidin-3(4H)-one

Ptantago arenaria Waldst. et Kit. furnishes this simple alkaloid, the structure of which has been elucidated from the NMR spectrum. The base has specific rotation of [α]²²_D + 305° (c 1.7, CHCI3) and gives an ultraviolet spectrum in EtOH having two absorption maxima at 213 and 244 nm.

ChEBI: Arenaine is a member of pyrimidines.

Rabaron et at., J. Amer. Chem. Soc., 93, 6270 (1971)