Table 4.

¹H and ¹³C NMR spectroscopic data of N-acetyl-6-dimethylallyl-l-tryptophan (4) in CD₃OD-d₄.

	N-Acetyl-6-dimethylallyl-l-tryptophan (4) c
Position	δC, Type	δH, Mult (J in Hz)
2	123.8, CH	7.01, s
3	110.9, C	4.70, dd (8.0, 5.0)
3a	127.1, C	3.31, m
4	119.0, CH	7.44, d (8.0)
5	120.9, CH	6.85, d (8.0)
6	136.3, C	-
7	111.4, CH	7.11, s
7a	138.5, C	-
8	28.6, CH2	3.31, m
		3.12, dd (15.0, 8.0)
9	54.8, CH	4.70, dd (8.0, 5.0)
10	175.3, C	-
11	173.2, C	-
12	22.4, CH3	1.90, s
1′	123.8, CH	7.01, s
2′	173.2, C	-
3′	22.4, CH3	1.90, s
4′	35.5, CH2	3.40, d (7.5)
5′	125.6, CH	5.36, t (7.5)

^{c 1}H and ¹³C NMR data were recorded at 900 and 225 MHz.