Triethylamine → Pemrametostat

HRID 880340Notes

Reaction equation

HRID 880340 reaction equation
Cl[C:2]1[N:7]=[CH:6][N:5]=[C:4]([C:8]([NH:10][CH2:11][C@H:12]([OH:24])[CH2:13][N:14]2[CH2:23][CH2:22][C:21]3[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=3)[CH2:15]2)=[O:9])[CH:3]=1.[NH2:25][CH:26]1[CH2:31][CH2:30][N:29]([C:32](=[O:34])[CH3:33])[CH2:28][CH2:27]1.CCN(CC)CC>CC(O)C>[C:32]([N:29]1[CH2:30][CH2:31][CH:26]([NH:25][C:2]2[N:7]=[CH:6][N:5]=[C:4]([C:8]([NH:10][CH2:11][C@H:12]([OH:24])[CH2:13][N:14]3[CH2:23][CH2:22][C:21]4[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=4)[CH2:15]3)=[O:9])[CH:3]=2)[CH2:27][CH2:28]1)(=[O:34])[CH3:33]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 49624771-(4-Aminopiperidin-1-yl)ethan-1-oneHCID 90241529(S)-6-chloro-N-(3-(3,4-dihydroisoquinolin-2(1H)-yl)-2-hydroxypropyl)pyrimidine-4-carboxamide

Product 1

HCID 90241742PemrametostatYield 130,573.398%

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

The solution of (S)-6-chloro-N-(3-(3,4-dihydroisoquinolin-2(1H)-yl)-2-hydroxypropyl)pyrimidine-4-carboxamide (190 g, 0.55 mmol) and 1-(4-aminopiperidin-1-yl)ethanone (78 g), Et3N (100 g, 1 mol) in i-PrOH (2000 mL) was stirred at 60° C. for 16 h, at which time LCMS showed completed conversion. The mixture was concentrated and the residue was purified by flash chromatography to give the crude product. Four batches were run in parallel and produced a combined crude product weight of 482 g. This crude was further purified on preparative HPLC to give the title compound (325 g, >98% purity, free base form). 1H NMR (400 MHz, MeOD-d4) 8.26 (s, 1H), 7.15-7.02 (m, 5H), 4.46 (m, 1H), 4.15-4.07 (m, 2H), 3.88 (m, 1H), 3.74 (s, 2H), 3.53 (m, 2H), 3.33 (m, 1H), 2.95-2.86 (m, 5H), 2.68 (m, 2H), 2.14-2.01 (m, 5H), 1.48-1.42 (m, 2H); LCMS (m/z): 453.3 [M+H]+

Workup

  1. concentrationThe mixture was concentrated
  2. customthe residue was purified by flash chromatography
  3. customto give the crude product
  4. customproduced a combined crude product weight of 482 g
  5. customThis crude was further purified on preparative HPLC

Sources & evidence

ORD record
ord-1c63cf638e364d7998a2a6c5d7a5b151
Source dataset
uspto-grants-2015_03
Patent number
US08993555B2

Reaction notes

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