1: 2,5-dioxotetrahydro-1H-1-pyrrolyl 3,7-dimethyl-6-octenoate With palladium diacetate; sodium carbonate; tri-cyclo-hexyl-phosphine in tetrahydrofuran T=60°C; Inert atmosphere; 2: 2-Methoxyphenyl-dihydroxyborane in tetrahydrofuran; water T=25 - 60°C; Inert atmosphere;