Question

10. Provide both a skeletal structure and an IUPAC name for the compound represented by the following Newman projections. (5 pts) 11. Quinine and cinchonine are naturally occurring alkaloids having antipyretic, anti-malarial and analgesic properties isolated from the bark of cinchona trees. They are white, crystalline compounds and possess a characteristic bitter taste. a. Label each stereocenter in the compound below with an asterisk. (2 pts each) cinchonine b. Assign RIS configurations as appropriate for the two positions above illustrated with dashed wedges. (4 pts each)

Answer 1

10. Pro vide both a skeletal Stucture and an IUPAC normne for the compound represented by the forcousing Meuron Projector H CH2CH3 CH3 CH, CH3 Now Skeletal will be following total Serbir There are s and h , 2-methyl-pentane 11. Cal. H Ohm S., Hete prezent - Stereo contar which are marked by For CIP Rule- priority order (6) но — ВФ U-ZIU- Nitrogen. hrane higher priority to are Carbon -H. So, 1. 1+2+3+4 clockwise and #(4) at front side So, s-Configuration

Priority order- from cip Rule in 20 xy genis motu in - prior thanc 1 +2+3+4 clockwise and H(4) at backside So, R- Configuration. -c-es H 40,...sy cinchonine