Potassium Carbonate → 2-[(9R)-9-(2-{4H,5H,6H-thieno[2,3-c]pyrrol-5-yl}ethyl)-6-oxaspiro[4.5]decan-9-yl]pyridine

HRID 626485Notes

Reaction equation

HRID 626485 reaction equation
[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[C@@:7]1([CH2:17][CH2:18][NH2:19])[CH2:16][C:11]2([CH2:15][CH2:14][CH2:13][CH2:12]2)[O:10][CH2:9][CH2:8]1.C(NCC[C@]1(C2C=CC(F)=CC=2)CC2(CCCC2)OCC1)C1C=CC=CC=1.Br[CH2:48][C:49]1[S:50][CH:51]=[CH:52][C:53]=1[CH2:54]Br.C([O-])([O-])=O.[K+].[K+]>C(#N)C>[S:50]1[C:49]2[CH2:48][N:19]([CH2:18][CH2:17][C@:7]3([C:2]4[CH:3]=[CH:4][CH:5]=[CH:6][N:1]=4)[CH2:16][C:11]4([CH2:15][CH2:14][CH2:13][CH2:12]4)[O:10][CH2:9][CH2:8]3)[CH2:54][C:53]=2[CH:52]=[CH:51]1

Participants

6

Reactant 4

HCID 11430Potassium CarbonateHCID 140017072,3-Bis(bromomethyl)thiopheneHCID 68314305benzyl({2-[(9R)-9-(4-fluorophenyl)-6-oxaspiro[4.5]decan-9-yl]ethyl})amineHCID 68314401Trv-0109662

Product 1

HCID 683137832-[(9R)-9-(2-{4H,5H,6H-thieno[2,3-c]pyrrol-5-yl}ethyl)-6-oxaspiro[4.5]decan-9-yl]pyridine

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a stirred solution of 2-[(9R)-9-(pyridin-2-yl)-6-oxaspiro[4.5]decan-9-yl]ethan-1-amine (0.030 g, 0.115 mmol; prepared by following a sequence described for Compound 81 in dried ACN (5.8 mL) was added 2,3-bis(bromomethyl)thiophene (31.1 mg, 0.115 mmol) followed by addition of K2CO3 (79.62 mg, 0.576 mmol). After 30 min, LCMS showed that the reaction was done and the major peak had the corresponding mass to the desired product. It was then subjected to HPLC purification. HPLC purification method: Luna acid medium column, 10-50% acetonitrile in H2O over 15 min, followed by flashing with 100% acetonitrile, 0.1% TFA modifier was employed. The fractions containing the desired product were pooled, basified with 2N NaOH and extracted with DCM (3×20 mL). The combined organics were concentrated and purified with flash chromatography (10 g silica gel column, eluted by 0-10% MeOH in DCM, based upon TLC measurement: DCM/MeOH (10/1) Rf=0.60) to afford 5 mg of 2-[(9R)-9-(2-{4H,5H,6H-thieno[2,3-c]pyrrol-5-yl}ethyl)-6-oxaspiro[4.5]decan-9-yl]pyridine as a colorless oil in 12% yield. LCMS m/z 369 (M+1) observed.

Workup

  1. customprepared

Sources & evidence

ORD record
ord-8566a7ef860a4a9a9ac548c11575a051
Source dataset
uspto-grants-2016_04
Patent number
US09309234B2

Reaction notes

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