Diisopropylethylamine → (S)-5-Bromo-N-(4-(chlorodifluoromethoxy)phenyl)-6-(3-hydroxypyrrolidin-1-yl)nicotinamide

HRID 924014

Reaction equation

CCN(C(C)C)C(C)C.[Br:10][C:11]1[C:12](Cl)=[N:13][CH:14]=[C:15]([CH:30]=1)[C:16]([NH:18][C:19]1[CH:24]=[CH:23][C:22]([O:25][C:26]([Cl:29])([F:28])[F:27])=[CH:21][CH:20]=1)=[O:17].[NH:32]1[CH2:36][CH2:35][C@H:34]([OH:37])[CH2:33]1>CC(O)C.CCOC(C)=O>[Br:10][C:11]1[C:12]([N:32]2[CH2:36][CH2:35][C@H:34]([OH:37])[CH2:33]2)=[N:13][CH:14]=[C:15]([CH:30]=1)[C:16]([NH:18][C:19]1[CH:24]=[CH:23][C:22]([O:25][C:26]([Cl:29])([F:28])[F:27])=[CH:21][CH:20]=1)=[O:17]

Participants

Conditions

Temperature: 140 °C

Procedure

DIPEA (190 μL, 1.1 mmol) was added to a solution of 5-bromo-6-chloro-N-(4-(chlorodifluoromethoxy)phenyl)nicotinamide (Stage 169.2, 206 mg, 0.5 mmol) and (S)-pyrrolidin-3-ol (52.3 mg, 0.6 mmol) in iPrOH (500 μL) in a vial, which was sealed and heated at 140° C. for 1 h. After cooling at RT, the RM was dissolved in EtOAc, washed with 0.5 M aq. HCl and brine, dried over Na2SO4 and the solvent was evaporated off under reduced pressure to give the crude product which was purified by flash chromatography (RediSep® Silica gel column, n-heptane/EtOAc, from 20% to 100% EtOAc) to afford the title compound as a white crystalline powder. HPLC (Condition 4) tR=5.59 min, UPLC-MS (Condition 3) tR=1.17 min, m/z=462.0/464.1 [M+H]+.

Workup

customwas sealed
temperatureAfter cooling at RT
washwashed with 0.5 M aq. HCl and brine
dry with materialdried over Na2SO4
customthe solvent was evaporated off under reduced pressure
customto give the crude product which
customwas purified by flash chromatography (RediSep® Silica gel column, n-heptane/EtOAc, from 20% to 100% EtOAc)

Sources & evidence

ORD record: ord-44232059e6824c9aa71cb8ff8184fd13
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09278981B2

Linked notes

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