Hz), 2.05 (s, 3H, COCH 3 ), 1.63 (m, 2H,
OCH 2 CH 2 CH 3 ), 1.27 (d, 3H, J 6.4 Hz, CH 3 -6 IV ), 0.92
(dd, 3H, J 7.7, 7.0 Hz, OCH 2 CH 2 CH 3 ); 13 C NMR
(D 2 O): d 174.6 (COCH 3 ), 102.3 (C-1 IV ), 101.2 (C-1 III ),
96.3 (C-1 II ), 95.4 (C-1 I ), 78.9, 75.2, 72.9, 71.9, 70.9,
70.4, 70.0, 69.9, 69.5, 69.3, 69.1, 69.0, 68.2, 68.1, 67.7,
61.2, 60.9, 51.6, 22.2 (COCH 3 ), 22.0 (OCH 2 CH 2 CH 3 ),
16.7 (CH 3 -6 IV ), 10.0 (OCH 2 CH 2 CH 3 ). HRMS: calcd