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What kind of R-group attachment is this?

Genecks
in Organic Chemistry

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I'm reading a book: Art of Drug Synthesis

 

It uses an alinine molecule and an attached R-group, which appears to be on the pi-bonds of the cyclical carbon molecule. I don't know what that represents, at least what kind of bond that represents. I've never seen such a carbon-skeleton framework used before. What does it represent?

post-3134-0-92770400-1367263704.jpg

As the poster above stated, it's just a shorthand to say that it could be in the ortho, para or meta position.

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