number	atom	shift
3	N	168.834
4	N	298.552
5	C	166.840
6	C	116.219
7	C	134.174
8	C	128.790
9	C	136.730
10	C	132.595
11	H	6.336
12	H	8.996
13	H	7.189
14	H	8.927
15	H	8.715
16	H	9.155