Multi-step reaction with 12 steps
1.1: lithium / 0 °C / Inert atmosphere
1.2: Reflux; Inert atmosphere
2.1: diisobutylaluminium hydride / dichloromethane / -78 °C / Inert atmosphere
3.1: sodium hydride / tetrahydrofuran; water / 0 - 20 °C / Inert atmosphere
3.2: 0 °C / Inert atmosphere
4.1: acetic acid / 1,2-dimethoxyethane / 24 h / 50 °C / Inert atmosphere
5.1: diisobutylaluminium hydride / toluene / -78 - 20 °C / Inert atmosphere
6.1: palladium 10% on activated carbon; hydrogen / ethyl acetate / 10 h / 20 °C
7.1: 1-[(1-(cyano-?2-?ethoxy-?2-?oxoethylidenaminooxy)?dimethylamino-?morpholino)]-uronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 0.5 h / 20 °C / Inert atmosphere
7.2: 1 h / 20 °C / Inert atmosphere
8.1: 1H-imidazole; iodine; triphenylphosphine / dichloromethane / 0 - 20 °C / Inert atmosphere
9.1: acetonitrile / 12 h / Inert atmosphere
10.1: N,N-dimethyl-formamide / 12 h / 20 °C / Inert atmosphere; Molecular sieve
10.2: 0 - 20 °C / Inert atmosphere
10.3: 0.5 h / 20 °C / Inert atmosphere
11.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0 - 20 °C / Inert atmosphere
12.1: triphenylphosphine; diethylazodicarboxylate / tetrahydrofuran; toluene / 4 h / 20 °C / Inert atmosphere
With
1H-imidazole; 1-[(1-(cyano-?2-?ethoxy-?2-?oxoethylidenaminooxy)?dimethylamino-?morpholino)]-uronium hexafluorophosphate; palladium 10% on activated carbon; tetrabutyl ammonium fluoride; hydrogen; iodine; lithium; sodium hydride; diisobutylaluminium hydride; acetic acid; N-ethyl-N,N-diisopropylamine; triphenylphosphine; diethylazodicarboxylate;
In
tetrahydrofuran; 1,2-dimethoxyethane; dichloromethane; water; ethyl acetate; N,N-dimethyl-formamide; toluene; acetonitrile;
10.1: Wittig olefination / 10.2: Wittig olefination / 10.3: Wittig olefination / 12.1: Mitsunobu coupling;
DOI:10.1021/ml200108y