Butler DE, Leonard JD, Caprathe BW, L'Italien YJ, Pavia MR, Hershenson FM, et al. (March 1987). "Amnesia-reversal activity of a series of cyclic imides". Journal of Medicinal Chemistry. 30 (3): 498–503. doi:10.1021/jm00386a010. PMID3820221.
Leonard NJ, Hruda LR, Long FW (March 1947). "The synthesis of pyrrolizidines". Journal of the American Chemical Society. 69 (3): 690–692. doi:10.1021/ja01195a067. PMID20289459.
espacenet.com
worldwide.espacenet.com
US patent 4663464, Hoekstra MS, "Process for the preparation of dihydro-1H-pyrrolizine-3,5-(2H,6H)-dione", issued 1987-05-05, assigned to Warner Lambert Co LLC
nih.gov
pubmed.ncbi.nlm.nih.gov
Butler DE, Leonard JD, Caprathe BW, L'Italien YJ, Pavia MR, Hershenson FM, et al. (March 1987). "Amnesia-reversal activity of a series of cyclic imides". Journal of Medicinal Chemistry. 30 (3): 498–503. doi:10.1021/jm00386a010. PMID3820221.
Leonard NJ, Hruda LR, Long FW (March 1947). "The synthesis of pyrrolizidines". Journal of the American Chemical Society. 69 (3): 690–692. doi:10.1021/ja01195a067. PMID20289459.
