Mass spectrometry of metastable ions from lagochiline-type diterpenoids

Low-and high-resolution mass spectra and spectra of metastable ions were studied using direct analysis of daughter ions (DADI) and metastable defocusing (MD) of lagochiline-type diterpenoids. Patterns in their fragmentation were found. __________ Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 56–60, January–February, 2007.     

X-ray structure of lagochirsine

The molecular structure of the lagochilin diterpenoid lagochirsine was determined by x-ray structure analysis. The crystallographic investigations were conducted on an automated four-circle STOE/STAD14 diffractometer at room temperature. The crystals were trigonal, space group P3₂ (No. 145), C₂₀H₃₂O₅, a = b = 14.289(2) Å, c = 8.2320(16) Å, V = 1455.6(4) ų , Z = 3, D_calc = 1.206 g/cm³, R = 0.065 (R_w = 0.1368).Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 398–400, September–October, 2004.     

Structure-Activity Relationship for Hemostatic Lagochilin Diterpenoids

The structure-hemostatic activity relationship of lagochilin and its natural and synthetic derivatives was investigated.