number	atom	shift
1	N	38.120
2	C	51.910
3	C	180.634
5	C	42.318
6	C	22.375
7	C	21.776
8	C	17.580
10	H	2.196
11	H	0.617
12	H	4.577
13	H	3.159
14	H	2.034
15	H	3.251
16	H	2.153
17	H	2.106
18	H	1.836
19	H	2.015
20	H	1.524
21	H	2.413
22	H	6.464