(1S,4R,5R,8R,9S,12R,13S) 12-(1S-Hydroxyethyl)-13-(3-hydroxypropyl)-5-(1,5-dimethylhexyl)-1,9-epoxy-4,8,13 Trimethyl Tricyclo [7,4,0,04,8] Tridecane

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Winter : synergistic effect of cells from the adult heart

5-Bromo-2,4,6-trimethyl-3-(3-methyl­phenyl­sulfin­yl)-1-benzo­furan

In the title compound, C18H17BrO2S, the dihedral angle between the mean plane of the benzo-furan ring system and the benzene ring is 68.58 (4)°. In the crystal, mol-ecules are linked via pairs of C-H⋯O hydrogen bonds into inversion dimers. These dimers are linked by C-H⋯O hydrogen bonds and π-π inter-actions between the benzene rings of neighbouring mol-ecules [centroid-centroid distance = 3.78...

Wp 13 = 5 : 15 Gravity Gradient Measurements

The problem of rotation corrections for hard mounted gravity gradiometers is widely regarded as intractable. In large part this is due to the unavailability of sufficiently accurate star sensors, gyros, and angular accelerometers. It will be shown here that, for floated satellite gradiometers, subject to very low levels of unmodeled forces and torques, dynamic estimation can dramatically reduce...

5α-Hy­droxy­eudesm-4(15),11(13)-dien-8β,12-olide

The title compound, C(15)H(20)O(3), a sesquiterpene lactone, was isolated from the aerial parts of Carpesium minus Hemsl. (Compositae). The mol-ecule is composed of three rings, with the two cyclo-hexane rings in chair conformations and the cyclo-pentane ring adopting a twist conformation. The A/B ring junction is trans-fused. The absolute configuration shown has been arbitrarily assigned. In t...

5-Bromo-2,4,6-trimethyl-3-methyl­sulfinyl-1-benzofuran

In the title compound, C(12)H(13)BrO(2)S, there are two symmetry-independent mol-ecules, A and B, in the asymmetric unit. The crystal studied was an inversion twin with a 0.70 (2):0.30 (2) domain ratio. The methyl-sulfinyl group in mol-ecule B is disordered over two positions with site-occupancy factors fixed at 0.6 and 0.4. The crystal structure is stabilized by C-H⋯O hydrogen bonds and inter-...