Dichloromethane → 4-bromo-benzoic acid 2-((3R,4R)-3-hydroxy-4-{3-methoxy-4-[7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-ylamino]-phenyl}-piperidin-1-yl)-ethyl ester

HRID 60375

Reaction equation

HRID 60375 reaction equation
[OH:1][CH2:2][CH2:3][N:4]1[CH2:9][CH2:8][C@H:7]([C:10]2[CH:15]=[CH:14][C:13]([NH:16][C:17]3[N:22]=[CH:21][C:20]4=[CH:23][CH:24]=[C:25]([C:26]5[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=5[O:32][CH3:33])[N:19]4[N:18]=3)=[C:12]([O:34][CH3:35])[CH:11]=2)[C@@H:6]([OH:36])[CH2:5]1.C(N(CC)CC)C.C(Cl)Cl.[Br:47][C:48]1[CH:56]=[CH:55][C:51]([C:52](Cl)=[O:53])=[CH:50][CH:49]=1>>[OH:36][C@@H:6]1[C@@H:7]([C:10]2[CH:15]=[CH:14][C:13]([NH:16][C:17]3[N:22]=[CH:21][C:20]4=[CH:23][CH:24]=[C:25]([C:26]5[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=5[O:32][CH3:33])[N:19]4[N:18]=3)=[C:12]([O:34][CH3:35])[CH:11]=2)[CH2:8][CH2:9][N:4]([CH2:3][CH2:2][O:1][C:52](=[O:53])[C:51]2[CH:55]=[CH:56][C:48]([Br:47])=[CH:49][CH:50]=2)[CH2:5]1

Participants

5

Reactant 4

HCID 6344DichloromethaneHCID 8471TriethylamineHCID 685154-Bromobenzoyl chlorideHCID 86288905(3R,4R)-1-(2-hydroxyethyl)-4-[3-methoxy-4-[[7-(2-methoxyphenyl)pyrrolo[2,1-f][1,2,4]triazin-2-yl]amino]phenyl]piperidin-3-ol

Product 1

HCID 865817254-bromo-benzoic acid 2-((3R,4R)-3-hydroxy-4-{3-methoxy-4-[7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-ylamino]-phenyl}-piperidin-1-yl)-ethyl esterYield 60%

Procedure

To a mixture of (3R,4R)-1-(2-hydroxy-ethyl)-4-{3-methoxy-4-[7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-ylamino]-phenyl}-piperidin-3-ol (Example 16b; 40.00 mg, 0.082 mmol) and triethylamine (12 uL, 0.09 mmol) in methylene chloride (0.400 mL, 6.24 mmol) was added 4-bromo-benzoyl chloride, (19 mg, 0.086 mmol) at 0° C. The reaction was stirred overnight allowing the cooling bath/reaction to slowly warm to room temperature. The volatile were evaporated and the crude residue was further dried on high vacuum, The product was isolated by preparative reverse phase hplc (Gilson) and the free base was released by using a strong cation exchange resin column (Strata, from Phenomenex) to give 33 mg (60% yield) of 4-bromo-benzoic acid 2-((3R,4R)-3-hydroxy-4-{3-methoxy-4-[7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-ylamino]-phenyl}-piperidin-1-yl)-ethyl ester. 1H NMR (CDCl3): 8.70 (br s, 1H), 8.35 (d, J=8.1 Hz, 1H), 7.96 (d, J=7.6 Hz, 1H), 7.92 (d, J=8.4 Hz, 2H), 7.60 (d, J=8.4 Hz, 2H), 7.47 (br s, 1H), 7.46-7.40 (m, 1H), 7.12 (app t, J=7.5 Hz, 1H), 7.07 (d, J=8.3 Hz, 1H), 7.02 (d, J=4.7 Hz, 1H), 6.85 (d, J=4.7 Hz, 1H), 6.78 (d, J=8.7 Hz, 1H), 6.76 (br s, 1H), 4.50 (app t, J=5.8 Hz, 2H), 3.89 (s, 3H), 3.84 (s, 3H), 3.80 (m, 1H), 3.31 (m, 1H), 3.04 (br d, J=11.3 Hz, 1H), 2.90 (app t, J=5.8 Hz, 2H), 2.35 (m, 1H), 2.26 (m, 1H), 2.15 (app t, J=10.2 Hz, 1H), 1.86 (m, 2H), 1.67 (br s, 1H).

Workup

  1. customthe cooling bath/reaction
  2. customThe volatile were evaporated
  3. dry with materialthe crude residue was further dried on high vacuum
  4. customThe product was isolated by preparative reverse phase hplc (Gilson)

Sources & evidence

ORD record
ord-291b81896417482899e1561d2719602a
Source dataset
uspto-grants-2016_09
Patent number
US09440984B2

Linked notes

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