“…HRMS: M 256.1781. C 13 3.80 and 3.92 (2H,2d,J 4.0 Hz,[2][3][4][5]m,CHOHCH 3 ), 5.38 (1H, br s, CHOH); d C (CDCl 3 ) 17. 1, 17.5, 19.3 and 19.5 (2 · CH(CH 3 ) 2 ), 23.4 and 23.6 (2 · CHOHCH 3 ), 25.9 and 29.8 (2 · CH 3 ), 31.1 and 31.4 (2 · CH(CH 3 ) 2 ), 47.6 and 49.0 (2 · CH 2 CHOH), 52.…”