Draw the line structures of the following compounds (showing working out for CIP assignments). a) (R)-5-Iodohex-1-ene b) 3,3-Dimethylpentanal c) Propyl (2R,3S)-2-bromo-3-methyloctanoate d) (2S,3S)-3,4-dichloro-N-ethyl-2-methoxybutan-1-amide