Improved synthesis of V-PYRRO/NO, a liver-selective nitric oxide prodrug, and analogues
摘要:
The reported synthesis of O-2-vinyl 1-(pyrrolidin-1-yl)diazen-1-ium-1,2-diolate(V-PYRRO/NO), a hepatoprotective agent, was cumbersome and limited by a poor overall yield of 4% from sodium 1-(pyrrolidin-1-yl)diazen-1-ium-1,2-diolate (PYRRO/No). We report an improved synthesis of V-PYRRO/NO in two steps with a significantly higher overall yield of 40% from PYRRO/NO. Using this protocol, a number of structural analogues of V-PYRRO/NO were prepared in good yields. Published by Elsevier Ltd.
Scalable Synthesis of Diazeniumdiolates: Application to the Preparation of MK-8150
摘要:
Synthetic diazeniumdiolate (DAZD)-based nitric oxide is utilized to modulate the nitric oxide (NO) concentration in cellular environments and to control physiological processes, yet chemists are still struggling to find efficient and scalable methodologies that will enable them to access sufficient quantities of the high-energy diazeniumdiolate intermediates for biological studies. Now, a general, scalable, safer, and high-yielding new methodology adaptable to the large-scale synthesis of DAZDs has been developed.