Table 1: UV, IR, MS spectral data for guineensine and sylvatine.

Compounds UV spectral data
Guineensine λmax(Ethanol) 214 261 302
Log C 4.15 4.92 3.81
Sylvatine λmax(Ethanol) - 259 304
Log C - 4.69 3.97
IR spectral data (cm-1)
Guineensine 3300 1655 1630 1605 1545 1000 965 925
Sylvatine 3279 - - 1605 - 1000 - 922
MS fragment mass ions (m/e)
Guineensine 383(M+) 248 161 135 131 103
Sylvatine 383(M+) 201 173 172 171