Chemdraw using

The reaction flow-charts of Part Two, and indeed all chemical formulae which appear in this book, were generated by computer. The program used for these drawings was ChemDraw adapted for the Macintosh personal computer by Mr. Stewart Rubenstein of these Laboratories from the molecular graphics computer program developed by our group at Harvard in the 1960 s (E. J. Corey and W. T. Wipke, Science, 1969,166, 178-192) and subsequently refined. 

So, consider a typical molecule such as aspirin (acetylsalicylic acid), shown in Figure 1.11. Such two-dimensional drawings can be made using ChemDraw or ISlSDraw, but all the features needed to construct a molecular mechanics force field are apparent. 

Naturally, with the flood of new computer technology came the need to train the research scientists in its use. Whereas ChemDraw running on a Mac was so easy that medicinal chemists could learn to use it after an hour or less of training, the VAX was a little more formidable. One of the authors (DBB) was involved in preparing and teaching VAX classes offered to the medicinal chemists and process chemists at Lilly. 

Figure 2.10 Secondary and tertiary structure of the enzyme lysozyme, PDB 2C80. Visualized using Cambridge Soft Chem3D Ultra 10.0 with notations in ChemDraw Ultra 10.0. ChemDraw Ultra, version 10.0. (Printed with permission of CambridgeSoft...

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