<jats:title>Abstract</jats:title><jats:p>Two new alkaloids, glaucenamide (<jats:bold>1</jats:bold>) and fissiceine (<jats:bold>2</jats:bold>), along with fifteen known ones, liriodenine (<jats:bold>3</jats:bold>), oxocrebanine (<jats:bold>4</jats:bold>), kuafumine (<jats:bold>5</jats:bold>), oxoxylopine (<jats:bold>6</jats:bold>), atherospermidine (<jats:bold>7</jats:bold>), (‐)‐xylopine (<jats:bold>8</jats:bold>), (‐)‐<jats:italic>N</jats:italic>‐acetylxylopine (<jats:bold>9</jats:bold>), <jats:italic>N</jats:italic>‐<jats:italic>trans</jats:italic>‐feruloyltyramine (<jats:bold>10</jats:bold>), aristololactam BII (<jats:bold>11</jats:bold>), aristololactam BIII (<jats:bold>12</jats:bold>), aristololactam AII (<jats:bold>13</jats:bold>), piperolactam A (<jats:bold>14</jats:bold>), goniothalactam (<jats:bold>15</jats:bold>), norcepharadion B (<jats:bold>16</jats:bold>), and noraristolodione (<jats:bold>17</jats:bold>) were isolated from the methanolic extracts of the <jats:italic>Fissistigma glaucescens</jats:italic>. The structures of these compounds were established by means of spectral analysis.