1-Hydroxybenzotriazole → 7-{2-[2-(tert-Butyldimethylsilanyloxy)ethoxy]thiazol-5-yl}-6-[cyclo-propyl-(2,3-dichlorobenzyl)carbamoyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl ester

HRID 1096853Notes

Reaction equation

HRID 1096853 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:15][CH:14]2[N:16]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH:10]([CH2:11][C:12]([C:27]3[S:31][C:30]([O:32][CH2:33][CH2:34][O:35][Si:36]([C:39]([CH3:42])([CH3:41])[CH3:40])([CH3:38])[CH3:37])=[N:29][CH:28]=3)=[C:13]2[C:24](O)=[O:25])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.CCN(C(C)C)C(C)C.[CH:74]1([NH:77][CH2:78][C:79]2[CH:84]=[CH:83][CH:82]=[C:81]([Cl:85])[C:80]=2[Cl:86])[CH2:76][CH2:75]1>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:1]([O:5][C:6]([N:8]1[CH2:15][CH:14]2[N:16]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH:10]([CH2:11][C:12]([C:27]3[S:31][C:30]([O:32][CH2:33][CH2:34][O:35][Si:36]([C:39]([CH3:41])([CH3:42])[CH3:40])([CH3:38])[CH3:37])=[N:29][CH:28]=3)=[C:13]2[C:24](=[O:25])[N:77]([CH:74]2[CH2:75][CH2:76]2)[CH2:78][C:79]2[CH:84]=[CH:83][CH:82]=[C:81]([Cl:85])[C:80]=2[Cl:86])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

8

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 834599Cyclopropyl-(2,3-dichloro-benzyl)-amineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 685733277-{2-[2-(tert-Butyldimethylsilanyloxy)ethoxy]thiazol-5-yl}-3,9-diaza-bicyclo[3.3.1]non-6-ene-3,6,9-tricarboxylic acid 3,9-di-tert-butyl ester

Product 1

HCID 685707807-{2-[2-(tert-Butyldimethylsilanyloxy)ethoxy]thiazol-5-yl}-6-[cyclo-propyl-(2,3-dichlorobenzyl)carbamoyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl esterYield 42%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent2×

Procedure

A sol. of compound D4 (1.39 mmol, 0.87 g) in CH2Cl2 (11.2 mL) was treated with DMAP (0.35 mmol, 42 mg), HOBt (1.67 mmol, 0.23 g), EDC.HCl (3.47 mmol, 0.66 g), and DIPEA (5.55 mmol, 0.95 mL). After 30 min at rt, cyclopropyl-(2,3-dichlorobenzyl)-amine (prepared by reductive amination from 2,3-dichlorobenzaldeyhde and cyclopropylamine; 4.16 mmol, 0.90 g) was added and the mixture was stirred for 4 days at rt. The reaction was then diluted with CH2Cl2 (40 mL), washed with aq. 1M HCl (2×50 mL), dried over MgSO4, filtered, and the solvents were removed under reduced pressure. Purification of the residue by FC (EtOAc/heptane 30:70) yielded the title compound (0.48 g, 42%). LC-MS: tR=1.29 min; ES+: 823.50.

Workup

  1. washwashed with aq. 1M HCl (2×50 mL)
  2. dry with materialdried over MgSO4
  3. filtrationfiltered
  4. customthe solvents were removed under reduced pressure
  5. customPurification of the residue by FC (EtOAc/heptane 30:70)

Sources & evidence

ORD record
ord-0346bf2d8d6148dabb7ab34322d75cf4
Source dataset
uspto-grants-2012_03
Patent number
US08138340B2

Reaction notes

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