Diisopropylethylamine → HCID 66834820, compound

HRID 61850Notes

Reaction equation

HRID 61850 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-5331468a6058469da2ed47b1a2d2e692
Source dataset
uspto-grants-2016_09
Patent number
US09440922B2

Reaction notes

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