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# Caffein, Ken Stewart, UKC, May 1988
R:	ring pointing up put N at 4 put N at 6 
	bond down from R.V4 ; CH3
	doublebond -120 from R.V5 ; O
	bond left from R.V6 ; H3C
	doublebond up from R.V1 ; O
F:	flatring5 pointing up with .V4 at R.V3 put N at 1 put N at 3 double 2,3 double 4,5
	bond up from F.V1 ; CH3
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