Here reported is the crystal structure of taxinine A (C_(26)H_(36)O_8, Mr=476.76) which was isolated from the needles of Taxus cuspidata. The crystal belongs to monoclinic system, space group is P2_1 with a=9. 122 (2)...Here reported is the crystal structure of taxinine A (C_(26)H_(36)O_8, Mr=476.76) which was isolated from the needles of Taxus cuspidata. The crystal belongs to monoclinic system, space group is P2_1 with a=9. 122 (2), b=10.451 (3), c=13.661(2),β=93. 92(1)°,Z=2, V=1299.3(5), D_x=1.218 g/cm￣3, F (000)=512,μ=0.08 mm-1, and the final R-factors are 0. 061 (Rf) and 0. 056(Rw) for 1796 observed diffractions. The molecule taxinine A is one of the taxane diterpenoids which possesses 6-8-6 fused tricycle skeleton.展开更多
Spontaneous cerebrospinal fluid （CSF） rhinorrhea is rarely found, especially in patients with brain tumors.Similarly, reports of tentorial meningioma coexisting with acquired Chiari I malformation with hydromyelia a...Spontaneous cerebrospinal fluid （CSF） rhinorrhea is rarely found, especially in patients with brain tumors.Similarly, reports of tentorial meningioma coexisting with acquired Chiari I malformation with hydromyelia are also few. No doubt, one patient with cerebrospinal fluid rhinorrhea, tentorial meningioma and Chiari I malformation with hydromyelia is hardly ever found. We reported one case of this rare condition.展开更多
文摘Here reported is the crystal structure of taxinine A (C_(26)H_(36)O_8, Mr=476.76) which was isolated from the needles of Taxus cuspidata. The crystal belongs to monoclinic system, space group is P2_1 with a=9. 122 (2), b=10.451 (3), c=13.661(2),β=93. 92(1)°,Z=2, V=1299.3(5), D_x=1.218 g/cm￣3, F (000)=512,μ=0.08 mm-1, and the final R-factors are 0. 061 (Rf) and 0. 056(Rw) for 1796 observed diffractions. The molecule taxinine A is one of the taxane diterpenoids which possesses 6-8-6 fused tricycle skeleton.
文摘Spontaneous cerebrospinal fluid （CSF） rhinorrhea is rarely found, especially in patients with brain tumors.Similarly, reports of tentorial meningioma coexisting with acquired Chiari I malformation with hydromyelia are also few. No doubt, one patient with cerebrospinal fluid rhinorrhea, tentorial meningioma and Chiari I malformation with hydromyelia is hardly ever found. We reported one case of this rare condition.
