Diisopropylethylamine → HCID 66834820, compound

HRID 2275226Notes

Reaction equation

HRID 2275226 reaction equation
[OH:1][C@H:2]([CH2:28][OH:29])[CH2:3][O:4][C:5]1[CH:6]=[CH:7][C:8]2[C:20](=[O:21])[C:19]3[C:18]4[C:13](=[C:14]([OH:24])[C:15]([C:22]#[N:23])=[CH:16][CH:17]=4)[NH:12][C:11]=3[C:10]([CH3:26])([CH3:25])[C:9]=2[CH:27]=1.[CH3:30][Si](C=[N+]=[N-])(C)C.C(N(C(C)C)CC)(C)C>CO.C(Cl)(Cl)Cl>[OH:1][C@H:2]([CH2:28][OH:29])[CH2:3][O:4][C:5]1[CH:6]=[CH:7][C:8]2[C:20](=[O:21])[C:19]3[C:18]4[C:13](=[C:14]([O:24][CH3:30])[C:15]([C:22]#[N:23])=[CH:16][CH:17]=4)[NH:12][C:11]=3[C:10]([CH3:26])([CH3:25])[C:9]=2[CH:27]=1

Participants

6

Reactant 3

HCID 81531DiisopropylethylamineHCID 167693TrimethylsilyldiazomethaneHCID 668349048-((R)-2,3-dihydroxy-propoxy)-4-hydroxy-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile

Product 1

HCID 66834820HCID 66834820, compoundYield 62%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6212ChloroformSolvent

Procedure

Under nitrogen atmosphere, 8-((R)-2,3-dihydroxy-propoxy)-4-hydroxy-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (Compound U8-4-2, 8.0 mg, 20.39 μmol) was dissolved in methanol (2.0 mL) and chloroform (2.00 mL), added with trimethylsilyldiazomethane (diethyl ether solution, 2 M, 15.3 μL, 30.58 μmol) and diisopropylethylamine (0.05 mL), and then stirred at room temperature for 31 hr. The residues obtained from the reaction solution after concentration under reduced pressure were purified by silica gel column chromatography (methanol/dichloromethane) to obtain the title compound (5.1 mg, 62%).

Workup

  1. customThe residues obtained from the reaction solution
  2. concentrationafter concentration under reduced pressure
  3. customwere purified by silica gel column chromatography (methanol/dichloromethane)

Sources & evidence

ORD record
ord-448cb698fc5e46e4b3f68c279d0df9de
Source dataset
uspto-grants-2015_09
Patent number
US09126931B2

Reaction notes

Loading…