number	atom	shift
1	C	71.014
2	C	70.746
3	C	69.989
4	C	75.023
5	C	72.732
6	C	70.198
13	H	4.331
14	H	4.839
15	H	4.368
16	H	4.353
17	H	5.313
18	H	5.059
19	H	2.326
20	H	2.974
21	H	2.145
22	H	0.201
23	H	2.308
24	H	3.535