1: With Grubb's 2nd generation catalyst in dichloromethane 6 h; Heating; 2: With hydrogen; acetic acid; palladium on activated charcoal in methanol T=30°C; P=760 Torr; 24 h; 3: With lithium aluminium tetrahydride in tetrahydrofuran 4 h; Heating; Title compound not separated from byproducts;