. 2017 Mar 29;15(4):98. doi: 10.3390/md15040098

Table 1.

¹H-NMR data for makaluvamines A (1), J (9), and their acetate derivatives (13–16) prepared as shown in Scheme 2.

Position	A (1) ^a	A-Ac (13) ^a	B-Ac (14) ^b	J (9) ^a	J-Ac (15) ^a	J di-Ac (16) ^b
Position	δ_H, mult, (J, Hz)
2	7.27, s	7.17, s	8.15, s	7.31, s	7.13, s	7.32, s
3	2.81, t (7.5)	2.70, t (7.5)	7.75, d (6.0)	2.92, t (7.5)	2.95, brs	3.04, t (7.5)
4	3.77, t (7.5)	3.95, t (7.5)	8.43, d (6.0)	3.89, t (7.5)	3.78, brs	3.93, t (7.5)
6	5.61, s	6.31, s	8.67, s	5.59, s	5.42, s	6.17, s
10				3.60, t (7.0)	3.63, brs	3.76, t (7.5)
11				2.83, t (7.0)	2.85, brs	2.98, t (7.5)
13				7.05, d (8.0)	7.05, d (8.0)	7.03, d (8.0)
14				6.69, d (8.0)	7.29, d (8.0)	7.31, d (8.0)
N1-Me	3.89, s	3.83, s	4.39, s
N5-Me				3.37, s	3.28, s	3.31, s
Ac		2.34, s	2.26, s		2.25, s	2.27, s 2.09, s

^{a 1}H-NMR data measured in DMSO-d₆ at 500 MHz; ^{b 1}H-NMR data measured in CD₃OD at 600 MHz.