29722-58-5Relevant academic research and scientific papers
X-Ray Structure Determination of Methoxynepetaefolin and Nepetaefolinol, Labdane Diterpenoid from Leonotis nepetaefolia R.Br.
Blount, John F.,Manchand, Percy S.
, p. 264 - 268 (2007/10/02)
The gross structures previously assigned to methoxynepetaefolin (6) and nepetaefolinol (7) have been confirmed by X-ray crystallography, which also defined the stereochemistry at C-13 as (R) in (6) and (S) in (7).Crystals of (6) are monoclinic, space group P21, with a = 6.769(1), b = 11.551(2), c = 13.812(2), β = 96.15(1)grad, and Z = 2.Crystals of (7) are orthorhombic, space group P212121 with a = 8.910(2), b = 10.520(1), c = 19.527(2), and Z = 4.The structures were refined by least-squares to R 0.041 for (6) and 0.044 for (7).
