1-Hydroxybenzotriazole → 7-{5-[2-(tert-Butyldimethylsilanyloxy)ethyl]-4-methylthiazol-2-yl}-6-[cyclopropyl-(3-methoxy-2-methylbenzyl)carbamoyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl ester

HRID 1096846Notes

Reaction equation

HRID 1096846 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:28][C:29]([CH2:33][CH2:34][O:35][Si:36]([C:39]([CH3:42])([CH3:41])[CH3:40])([CH3:38])[CH3:37])=[C:30]([CH3:32])[N:31]=3)=[C:13]2[C:24]([OH:26])=O)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH:43]1([NH:46][CH2:47][C:48]2[CH:53]=[CH:52][CH:51]=[C:50]([O:54][CH3:55])[C:49]=2[CH3:56])[CH2:45][CH2:44]1.CCN(C(C)C)C(C)C.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl>CN(C1C=CN=CC=1)C.C(Cl)Cl>[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:28][C:29]([CH2:33][CH2:34][O:35][Si:36]([C:39]([CH3:42])([CH3:41])[CH3:40])([CH3:37])[CH3:38])=[C:30]([CH3:32])[N:31]=3)=[C:13]2[C:24](=[O:26])[N:46]([CH:43]2[CH2:45][CH2:44]2)[CH2:47][C:48]2[CH:53]=[CH:52][CH:51]=[C:50]([O:54][CH3:55])[C:49]=2[CH3:56])[CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

8

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 58006030Cyclopropyl-(2-methyl-3-methoxybenzyl)amineHCID 685730257-{5-[2-(tert-Butyldimethylsilanyloxy)ethyl]-4-methylthiazol-2-yl}-3,9-diazabicyclo[3.3.1]non-6-ene-3,6,9-tricarboxylic acid 3,9-di-tert-butyl ester

Product 1

HCID 685718207-{5-[2-(tert-Butyldimethylsilanyloxy)ethyl]-4-methylthiazol-2-yl}-6-[cyclopropyl-(3-methoxy-2-methylbenzyl)carbamoyl]-3,9-diazabicyclo[3.3.1]non-6-ene-3,9-dicarboxylic acid di-tert-butyl esterYield 73.1%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent2×

Procedure

A mixture of compound D1 (10.52 g, 13.6 mmol), cyclopropyl-(3-methoxy-2-methylbenzyl)amine (prepared by reductive amination from 3-methoxy-2-methylbenzaldehyde, Comins, D. L.; Brown, J. D., J. Org. Chem., 1989, 54, 3730 and cyclopropylamine, 6.54 g, 34.2 mmol), DIPEA (9.40 mL, 54.9 mmol), DMAP (417 mg, 3.40 mmol), HOBt (2.77 g, 20.5 mmol) and EDC.HCl (7.84 g, 40.9 mmol) in CH2Cl2 (150 mL) was stirred at rt for 3 days. The mixture was diluted with more CH2Cl2, and washed with aq. 1M HCl (3×) and aq. sat. NaHCO3 (1×). The org. extracts were dried over MgSO4, filtered, and the solvents were removed under reduced pressure. Purification of the residue by FC (EtOAc/heptane 1:5→1:3→1:2→1:1→3:2) yielded the title compound (7.93 g, 70%). LC-MS: tR=1.30 min, ES+: 797.67.

Workup

  1. washwashed with aq. 1M HCl (3×) and aq. sat. NaHCO3 (1×)
  2. dry with materialextracts were dried over MgSO4
  3. filtrationfiltered
  4. customthe solvents were removed under reduced pressure
  5. customPurification of the residue by FC (EtOAc/heptane 1:5→1:3→1:2→1:1→3:2)

Sources & evidence

ORD record
ord-1a2784be62174e39bb834fd9222ac5f2
Source dataset
uspto-grants-2012_03
Patent number
US08138340B2

Reaction notes

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