11 HMBC (high field expansion)of QS-103-6 NOESY (0.8 sec)of QS-103-6 3.0 3.5 80 5.5 45 30 66 11 HMBC (high field expansion) of QS-103-6 2.5 2.0 1.5 1.0 ppm 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 ppm 12 NOESY (0.8 sec) of QS-103-6