Multi-step reaction with 16 steps
1: 91 percent / Et3N; DMAP / CH2Cl2 / 20 °C
2: 94 percent / I2 / benzene / Irradiation
3: 95 percent / dimethylsulfoxide / 50 °C
4: NaOH / methanol; H2O / Heating
5: diethyl ether / 0 °C
6: 88 percent / NH2OH*HCl; KOH / methanol / 0 °C
7: NaIO4 / H2O; dimethylformamide / 0.25 h / 0 °C
8: 97 percent / H2 / Pd/C / tetrahydrofuran
9: 99 percent / LiHMDS; (+)-[(8,8-dichlorocamphoryl)sulfonyl]oxaziridine / tetrahydrofuran / -78 °C
10: 73 percent / imidazole / dimethylformamide / 20 °C
11: tetrahydrofuran / 0 °C
12: NaBH3CN; AcOH / tetrahydrofuran / 0 °C
13: 93 percent / Zn; aq. AcOH / 60 °C
14: H2 / Pd(OH)2 / methanol
15: Na2CO3
16: aq. NaOH / methanol / 20 °C
With
1H-imidazole; dmap; potassium hydroxide; sodium hydroxide; sodium periodate; (+)-(8,8-dichlorocamphorylsulfonyl)-oxaziridine; hydroxylamine hydrochloride; hydrogen; iodine; sodium cyanoborohydride; sodium carbonate; acetic acid; triethylamine; lithium hexamethyldisilazane; zinc;
palladium dihydroxide; palladium on activated charcoal;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; dimethyl sulfoxide; N,N-dimethyl-formamide; benzene;
DOI:10.1021/ol030088w