Secupyritines A‒C, Three Natural Propellane Securinega Alkaloids: Structure Elucidation and Total Synthesis Based on Biogenetic Building Blocks.

Secupyritines A‒C are unique polycyclic Securinega alkaloids isolated from medicinal plant Flueggea suffruticosa. They feature a distinctive 6/6/6/5/6 fused pentacyclic ring system with a highly strained 2-oxa-6-aza[4.4.

Osteosarcoma of the Mandible: A Site-Specific Study on Survival and Prognostic Factors.

Osteosarcoma of head and neck is a rare condition comprising of <1% of all head and neck cancers, retrospective studies show difference in survival of mandibular osteosarcoma to other head and neck sites, necessitating investigation into site-specific survival and recurrence rates.