Catalytic asymmetric reductive hydroalkylation of enamides and enecarbamates to chiral aliphatic amines.

To increase the reliability and success rate of drug discovery, efforts have been made to increase the C(sp) fraction and avoid flat molecules. sp-Rich enantiopure amines are most frequently encountered as chiral auxiliaries, synthetic intermediates for pharmaceutical agents and bioactive natural products. Streamlined construction of chiral aliphatic amines has long been regarded as a paramount challenge.

[A Capacitive Venous Transfusion Alertor Based on NB-IoT].

This capacitive venous transfusion alertor is based on rise time of RC circuit and input capture function of timer in the microcontroller. The measure element of alertor is integrated with circuit board, it has the advantages of simple structure and low cost. Combined with narrow band intent of things(NB-IoT) technology to upload data, it can reduce the workload of medical personnel and caregivers, avoid unnecessary trouble and danger.