Two steroids (1 and 2), five pentacyclic triperpenoids (3–7) and a new furanosesquiterpene (8) were isolated from the stems of Ximenia americana, family Olacaceae. The structures of the compounds were established by spectral data; two-dimensional NMR spectroscopy has been used to assign all 1H and 13C chemical shifts of 8. Compound 8 did not inhibit the growth of HL-60 (human leukemia), HTC-8 (human colon), and MDA-MB-435 (human breast cancer) cell lines.
BragaR. (1976) Plantas do Nordeste, Especialmente do Ceará. Vol. 52 (3a Ed), Imprensa Oficial, Fortaleza – Brazil, 82–83.
2.
MenezesJESA. (2005) Contribuição ao Estudo Químico de Plantas do Nordeste do Brasil: Cordia trichotoma Vell. e Cordia globosa Jack. Tese de Doutorado, DQOI-UFC, Fortaleza – Brazil.
3.
FonsecaAM. (2003) Estudo Fitoquímico dos Constituintes Fixos e Voláteis de Capraria biflora. Dissertação de Mestrado, DQOI-UFC, Fortaleza – Brazil.
4.
CanutoKM. (2002) Contribuição ao Conhecimento Químico de Plantas do Nordeste: Herissantia tiubae eAmburana cearensis. Dissertação de Mestrado, DQOI-UFC, Fortaleza - Brazil.
5.
AragãoPC, ToledoJB, MoraisAA, Braz-FilhoR. (1990) Substâncias naturais isoladas de Stigmaphyllon tormentosum e Byrsonina variabilis. Química Nova, 13, 254–259.
6.
MahatoSB, KunduAP. (1994) 13C NMR spectra of pentacyclic triterpenoids-A compilation and some salient features. Phytochemistry, 37, 1517–1575.
7.
SantosRP. (2002) Contribuição ao Conhecimento Químico de Plantas do Nordeste:Cordia piauhiensis. Dissertação de Mestrado, DQOI-UFC, Fortaleza – Brazil.
SyLK, SaundersRMK, BrownGD. (1997) Phytochemistry of Illicium dunnianum and systematic position of the Illiaceae. Phytochemistry, 44, 1099–1108.
10.
DouradoRGM. (2003) Contribuição ao Conhecimento Químico de Plantas do Nordeste: Cróton sonderianus (Euphorbiaceae). Dissertação de Mestrado, DQOI-UFC, Fortaleza – Brazil.
11.
MuhammadI, MossaS, Al-YahyaMA, MirzaHH, El-FeralyFS, McPhailA. (1994) New modified labdane diterpenoids from Cluytia richardiana. Journal of Natural Products, 57, 248–255.
12.
FangN, MabryTJ. (1988) Sesquiterpenes of Ageratina tomertella. Phytochemistry, 27, 283–285.
13.
HerzW, GovidanSV, BlountJF. (1980) Glycosidic disecoeudesmanolides and other secosesquiterpene lactones from Picradeniopsis species. X-ray analysis bahia I. Journal of Organic Chemistry, 45, 3163–372.
14.
SpringO, AlbertK, HagerA. (1982) Three biologically active heliangolides from Helianthus annuus. Phytochemistry, 21, 2551–2553.
15.
MosmamnT. (1983) Rapid colorimetric assay for cellular growth and survival: Application to proliferation and cytotoxicity assays. Journal of Immunological Methotds, 65, 55–63.
