Acetyl chloride → HCID 131727066, compound

HRID 33031Notes

Reaction equation

HRID 33031 reaction equation
[Cl:1][C:2]([Cl:48])([Cl:47])[C:3]([O:6][C:7]([N:9]1[C@H:14]2[C:15]([C:35]([O:37][CH2:38][CH3:39])=[O:36])=[C:16]([C:18]3[CH:23]=[CH:22][C:21]([O:24][CH2:25][CH2:26][O:27][Si](C(C)(C)C)(C)C)=[CH:20][CH:19]=3)[CH2:17][C@@H:10]1[CH2:11][N:12]([C:40]([O:42]C(C)(C)C)=O)[CH2:13]2)=[O:8])([CH3:5])[CH3:4].Cl.O1CCOC[CH2:51]1.CCN(C(C)C)C(C)C.C(Cl)(=O)C>CN(C1C=CN=CC=1)C.CO.C1COCC1.C(Cl)Cl>[Cl:47][C:2]([Cl:48])([Cl:1])[C:3]([O:6][C:7]([N:9]1[C@H:14]2[C:15]([C:35]([O:37][CH2:38][CH3:39])=[O:36])=[C:16]([C:18]3[CH:19]=[CH:20][C:21]([O:24][CH2:25][CH2:26][OH:27])=[CH:22][CH:23]=3)[CH2:17][C@@H:10]1[CH2:11][N:12]([C:40](=[O:42])[CH3:51])[CH2:13]2)=[O:8])([CH3:4])[CH3:5]

Participants

9

Reactant 4

HCID 6367Acetyl chlorideHCID 81531DiisopropylethylamineHCID 204431481,4-Dioxane hydrochlorideHCID 44158059(rac.)-(1R*,5S*)-7-{4-[2-(tert-Butyldimethylsilanyloxy)ethoxy]phenyl}-3,9-diazabicyclo[3.3.1]non-6-ene-3,6,9-tricarboxylic acid 3-tert-butyl ester 6-ethyl ester 9-(2,2,2-trichloro-1,1-dimethylethyl) ester

Product 1

HCID 131727066HCID 131727066, compound

Reagents, catalysts & solvents 4

HCID 142844-(Dimethylamino)pyridineCatalystHCID 887MethanolSolventHCID 6344DichloromethaneSolventHCID 8028TetrahydrofuranSolvent

Procedure

As for compound S1, from H7 (5.80 g, 7.73 mmol), CH2Cl2 (60 mL), 4M HCl/dioxane (60 mL), THF (50 mL), DMAP (47 mg, 0.384 mmol), DIPEA (5.29 mL, 31.7 mmol), acetyl chloride (0.604 mL, 8.08 mmol), and MeOH (5 mL). Purification of the residue by FC (EtOAc/heptane 1:1→EtOAc MeOH/EtOAc 1:9) led to the title compound (3.07 g, 69%). Rf=0.20 (EtOAc). LC-MS: Rt=4.80; ES+: 576.93.

Workup

  1. customPurification of the residue by FC (EtOAc/heptane 1:1→EtOAc MeOH/EtOAc 1:9)

Sources & evidence

ORD record
ord-4d9ce3e70f4a4423a9179679d6017a3d
Source dataset
uspto-grants-2008_09
Patent number
US07427613B2

Reaction notes

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