Multi-step reaction with 16 steps
1.1: 93 percent / NaH / benzene / 1.5 h / Heating
2.1: Br2 / diethyl ether / 2.17 h / 0 °C
3.1: 39 percent / methanol / 0 - 20 °C
4.1: 98 percent / porcine liver esterase; aq. Na2HPO4; aq. K2HPO4 / acetone / 3 h / 20 °C / pH 7
5.1: triethylamine / tetrahydrofuran / 0.5 h / 0 °C
5.2: 89 percent / NaBH4 / H2O / 0.5 h / 0 °C
6.1: 93 percent / TsOH monohydrate / CH2Cl2 / 1 h / 20 °C
7.1: DIBAL-H / CH2Cl2; hexane / 1 h / -78 °C
7.2: 91 percent / Rochelle's salt / CH2Cl2 / 0.33 h
8.1: 95 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
9.1: 71 percent / MgBr2 / diethyl ether / 5 h / 20 °C
10.1: 60 percent / EDCl; DMAP / CH2Cl2 / 4 h / 20 °C
11.1: aq. HF / acetonitrile / 1.5 h / 20 °C
12.1: 23.6 mg / DCC; DMAP*HCl / CHCl3 / 20 h / Heating
13.1: CH2Cl2 / Photolysis
14.1: aq. LiOH / dioxane / 1.5 h / 50 °C
15.1: KMnO4 / H2O; dioxane / 1 h / 40 °C
16.1: aq. HCl
With
2,6-dimethylpyridine; hydrogenchloride; porcine liver esterase; dmap; lithium hydroxide; potassium permanganate; dipotassium hydrogenphosphate; disodium hydrogenphosphate; hydrogen fluoride; bromine; 4-(dimethylamino)pyridine hydrochloride; sodium hydride; diisobutylaluminium hydride; toluene-4-sulfonic acid; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; dicyclohexyl-carbodiimide; magnesium bromide;
In
tetrahydrofuran; 1,4-dioxane; methanol; diethyl ether; hexane; dichloromethane; chloroform; water; acetone; acetonitrile; benzene;
1.1: Condensation / 2.1: Bromination / 3.1: Favorski rearrangement-elimination / 4.1: asymmetric hydrolysis / 5.1: Addition / 5.2: Reduction / 6.1: Addition / 7.1: Reduction / 7.2: Reduction / 8.1: silylation / 9.1: acetal cleavage / 10.1: Esterification / 11.1: desilylation / 12.1: Keck-Steglich lactonization / 13.1: Cycloaddition / 14.1: Hydrolysis / 15.1: Oxidation / 16.1: dehydrative cyclization;
DOI:10.1021/ja001898v