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I want to build up in stages how we might make a molecule like this stereo selectively there are a few things we need to control we can observe that thereamp;#39;s three stereo centers so therefore thereamp;#39;s a possible 2 to the^ 3 which is eight stereoisomers of those stereoisomers we can look at the relationships between the stereo centers and as indicated in those arrows thereamp;#39;s two relative stereochemical relationships so these eight stereoisomers are going to be comprised of four diomer with each possible pair of relationships think like sin sin sin anti anti- sin like that and due to the lack of symmetry each will exist as two an antimers or also called Optical isomers so the first challenge to assess is how do we assemble the atoms in the right place how do we assemble the carbon skeleton and here just to keep things simple Iamp;#39;m going to ignore stereochemistry first the next most complex stage would be to think about how we make this diio selective as in pic
