Degradation of 1 synthesis of authentic standards. Reagents and Conditions: a) FeCl2, CH3CN/H2O (degassed), rt, 45 min; b) NaN3, DMF, 100 °C; c) H2, Pd-C (hexane/EtOH); d) 11, Et3N, CH2Cl2; e) Candida rugosa lipase, 1-hexanol, cyclohexane, 50 h; f) LiAlH4, Et2O, rt; g) PPh3, CCl4.