Two new convenient syntheses of 14C-squalene from turbinaric acid

Carbon-14 labeled (6E,10E,14E,18E)-2,6,10,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaene, also known as squalene, was synthesized as a tool for pharmacokinetic studies. Two simple and efficient labeling approaches were developed to give [2-¹⁴ C]-squalene and [3-¹⁴ C]-squalene from a halogenated precursor derived from turbinaric acid. They were obtained in 13.5% radiochemical yield in 6 steps and in 38% radiochemical yield in 3 steps respectively from carbon-14 labeled potassium cyanide with a radiochemical purity higher than 98% in both cases.

Embryonal rhabdomyosarcoma. A case report

A patient with embryonal rhabdomyosarcoma, who presented with septic criminal abortion, is discussed. The fact that the correct diagnosis was obscured by the unusual sequence of events is commented upon, and the need for critical evaluation of apparently clear-cut cases is demonstrated.