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Chemical Structure| 1126369-28-5 Chemical Structure| 1126369-28-5

Structure of 1126369-28-5

Chemical Structure| 1126369-28-5

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Product Details of [ 1126369-28-5 ]

CAS No. :1126369-28-5
Formula : C20H19BN2O4
M.W : 362.19
SMILES Code : O=C(NC1=CC(B(O)O)=CC=C1C)C2=CC=C(OCC3=NC=CC=C3)C=C2
MDL No. :MFCD11865165

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Application In Synthesis of [ 1126369-28-5 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 1126369-28-5 ]

[ 1126369-28-5 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 50596-36-6 ]
  • [ 22237-12-3 ]
  • [ 1126369-28-5 ]
YieldReaction ConditionsOperation in experiment
92% To 4-(pyridin-2-ylmethoxy)benzoic acid (300 mg, 1.31 mmol), HATU (522 mg, 1.37 mmol) and DIPEA (0.457 mL, 2.62 mmol) was added DMF (3 mL). After stirring for 1 h at 50 0C, the mixture was cooled and 3-amino-4-methylphenylboronic acid (198 mg, 1.31 mmol) was added. The reaction was reheated to 50 0C for 6 h , an additional equivalent of 3- amino-4-methylphenylboronic acid was added, and the reaction was stirred at RT for 48h. The reaction was poured into sat. NaCl solution (30 mL). The precipitate was filtered, washed with water, followed by Et2O, and dried under suction to yield the title compound (434 mg, 92 %). 1R NMR (DMSO-de) δ 9.75 (s, IH), 8.61 (d, IH), 7.96 (d, 2H), 7.90 (td, IH), 7.67 (s, IH), 7.58 (m, 2H), 7.40 (dd, IH), 7.22 (d, IH), 7.14 (d, 2H), 5.29 (s, 2H), 2.20 (s, 3H). MS (M+H+) = 363.
92% With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide; at 20 - 50℃; for 65h; To 4-(pyridin-2-ylmethoxy)benzoic acid (300 mg, 1.31 mmol), HATU (522 mg, 1.37 mmol) and DIPEA (0.457 mL, 2.62 mmol) was added DMF (3 mL). After stirring for 1 h at 50 C, the mixture was cooled and 3-amino-4-methylphenylboronic acid (198 mg, 1.31 mmol) was added. The reaction was reheated to 50 C for 6 h. As HOAt ester was still present, an additional equivalent of 3-amino-4-methylphenylboronic acid was added, and the reaction was stirred at RT for 48h. The reaction was poured into sat. NaCl solution (30 mL). The precipitate was filtered, washed with water, followed by Et2O, and dried under suction to yield the title compound (434 mg, 92 %). 1H NMR (DMSO-d6) δ ppm 9.75 (s, 1H), 8.61 (d, 1H), 7.96 (d, 2H), 7.90 (td, 1H), 7.67 (s, 1H), 7.58 (m, 2H), 7.40 (dd, 1H), 7.22 (d, 1H), 7.14 (d, 2H), 5.29 (s, 2H), 2.20 (s, 3H). LCMS (M+H) = 363.
  • 2
  • [ 1126369-28-5 ]
  • [ 235426-31-0 ]
  • [ 1126365-64-7 ]
YieldReaction ConditionsOperation in experiment
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate; In 1,4-dioxane; water; at 150.0℃; for 0.666667h;Inert atmosphere; Microwave irradiation; General procedure: A mixture of 4-methyl-3-(4-(pyridin-2-ylmethoxy)benzamido)phenyl boronic acid (50 mg, 0.14 mmol), Cs2CO3 (135 mg, 0.41 mmol), Pd(PPh3)4(23.93 mg, 0.02 mmol) and 4-bromo-1H-imidazole (26 mg, 0.18 mmol) was purged with nitrogen before adding degassed dioxane (690 muL) and water (230 muL) and heating in a microwave for 40 min at 150 C. After cooling, the aqueous layer was removed with a pipette, and the organic layer was diluted with DMSO (1 mL) and filtered through a 0.2 mum filter. The filtrate was concentrated to a volume of 1 mL and purified by Gilson HPLC (20-75% MeCN/10 mM NH4OAc in water). The fractions were concentrated and lyophilized to yield the product (19 mg, 0.049 mmol, 35%). 1H NMR (DMSO-d6) delta ppm 12.11 (s, 1H), 9.76 (s, 1H), 8.59 (d, 1H), 7.97 (d, 2H), 7.85 (td, 1H), 7.70 (s, 1H), 7.67 (s, 1H), 7.56 (m, 2H), 7.36 (dd, 1H), 7.21 (d, 1H), 7.15 (d, 2H), 5.27 (s, 2H), 2.18 (s, 3H). LCMS (M+H) = 385.
 

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