Four new nortropane alkaloids have been isolated from the leaves of Erythroxylum moonii and identified as nortropane-3α-6β-7β-triol 3-benzoate 7- (2′-hydroxy-3′-phenylpropanoate) (1), nortropane-3α-7β-diol 7-transcinnnamate 3-propanoate (2), nortropane-3α-7β-diol 7-benzoate 3-(2′- methylpropanoate) (3), and nortropane-3α-7β-diol 3-(2′-methylpropanoate) 7-cis- (3″,4″,5″-trimethoxycinnamate) (4). Additionally, five known bases are characterized as tropane-3α-7β-diol 7-benzoate (5), tropane-3α-7β-diol 3-phenylacetate (6), tropane-3α-7β-diol 3-benzoate (7), tropane-3α-6β-7β-triol 3-benzoate (8), and tropane-3α-yl 3-(3′,4′,5′-trrimethoxybenzoate) (9). The structures for the compounds are proposed on the basis of spectroscopic evidences.