“…Rollinone (3). Mp 54-55°(EtOAc-hexane): [a]2, + 25.0°(c 0.1371, CHC1,); ir (CC14) 3486, 2930, 1780, 1726, 1466, 1410, 1356, 1050, 715 cm-1; uv max (CH2C12) 231, 280 nm (e 15199); pmr (CDC13) 0.88 (t,_/=7 Hz, 3H, 34-CH3), 1.26 (brs,-34H), 1.47 (m,3H), 1.7-2.0 (m, ~10H), 2.18 (d, J=9 Hz, 3H, 37-CH3), 2.6 (m, 2H, 35-H2), 3.05 (m, 1H), 3.08 (dt, J= 18,3 Hz, 16-H), 3.42 (m, 1H), 3.8-3.95 (m, -7H), 4.40 (m, 1H, 36-H); cmr (C6D6) ppm 14.4 q (C-34), 23.2 q (C-37), 24.…”