Diisopropylethylamine → 3-tert-butoxycarbonyl-7-chloro-6-{4-[2-(cyclopropylmethyl-amino)-thiazol-4-yl]-phenylthiomethyl}-2,3,4,5-tetrahydro-1H-benzo[d]azepine

HRID 1670576Notes

Reaction equation

HRID 1670576 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:14][CH2:13][C:12]2[C:15]([CH2:20][SH:21])=[C:16]([Cl:19])[CH:17]=[CH:18][C:11]=2[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Br[C:23]1[CH:28]=[CH:27][C:26]([C:29]2[N:30]=[C:31]([NH:34][CH2:35][CH:36]3[CH2:38][CH2:37]3)[S:32][CH:33]=2)=[CH:25][CH:24]=1.CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.C(N(C(C)C)CC)(C)C>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:1]([O:5][C:6]([N:8]1[CH2:14][CH2:13][C:12]2[C:15]([CH2:20][S:21][C:23]3[CH:24]=[CH:25][C:26]([C:29]4[N:30]=[C:31]([NH:34][CH2:35][CH:36]5[CH2:37][CH2:38]5)[S:32][CH:33]=4)=[CH:27][CH:28]=3)=[C:16]([Cl:19])[CH:17]=[CH:18][C:11]=2[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 59822262HCID 59822262, compoundHCID 598222763-tert-Butoxycarbonyl-7-chloro-6-mercaptomethyl-2,3,4,5-tetrahydro-1H-benzo[d]azepine

Product 1

HCID 866237093-tert-butoxycarbonyl-7-chloro-6-{4-[2-(cyclopropylmethyl-amino)-thiazol-4-yl]-phenylthiomethyl}-2,3,4,5-tetrahydro-1H-benzo[d]azepineYield 97.6%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of 3-tert-butoxycarbonyl-7-chloro-6-mercaptomethyl-2,3,4,5-tetrahydro-1H-benzo[d]azepine (0.051 g, 0.155 mmol) in dry dioxane (0.7 mL) add N-[4-(4-bromo-phenyl)-thiazol-2-yl]-cyclopropylmethylamine (0.043 g, 0.14 mmol), tris(dibenzylideneacetone)dipalladium(0) (3.2 mg, 0.0035 mmol), Xantphos (4.1 mg, 0.014 mmol) and diisopropylethylamine (0.049 mL, 0.28 mmol) at room temperature. Purge the reaction mixture with nitrogen and heat the mixture at 100° C. overnight. Cool the reaction mixture to room temperature, dilute with DCM (50 mL) and filter through Celite®. Concentrate the filtrate in vacuo. Dissolve the residue in DCM, load the solution on to a RediSep® column (40 g) and purify the crude mixture by preparative liquid chromatography (0:100 to 25:75 EtOAc/hexane over 33 min; 35 mL/min) to afford 3-tert-butoxycarbonyl-7-chloro-6-{4-[2-(cyclopropylmethyl-amino)-thiazol-4-yl]-phenylthiomethyl}-2,3,4,5-tetrahydro-1H-benzo[d]azepine (0.076 g, 97%) as a colorless oil.

Workup

  1. customPurge the reaction mixture with nitrogen
  2. temperatureCool the reaction mixture to room temperature
  3. additiondilute with DCM (50 mL)
  4. filtrationfilter through Celite®
  5. concentrationConcentrate the filtrate in vacuo
  6. dissolutionDissolve the residue in DCM
  7. customload the solution on to a RediSep® column (40 g) and purify the crude mixture by preparative liquid chromatography (0:100 to 25:75 EtOAc/hexane over 33 min; 35 mL/min)

Sources & evidence

ORD record
ord-664c4d71651f4f82b6d098ca776e18bc
Source dataset
uspto-grants-2011_08
Patent number
US07994163B2

Reaction notes

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