Diisopropylethylamine → n-[2-Amino-5-(2-thienyl)phenyl]-6-(3-methyl-3-oxido-2,4-dioxa-9-aza-3-phosphaspiro[5.5]undec-9-yl)nicotinamide

HRID 1013495Notes

Reaction equation

HRID 1013495 reaction equation
Cl[C:2]1[N:7]=[CH:6][C:5]([C:8]([NH:10][C:11]2[CH:16]=[C:15]([C:17]3[S:18][CH:19]=[CH:20][CH:21]=3)[CH:14]=[CH:13][C:12]=2[NH:22]C(=O)OC(C)(C)C)=[O:9])=[CH:4][CH:3]=1.Cl.[CH3:31][P:32]1(=[O:43])[O:37][CH2:36][C:35]2([CH2:42][CH2:41][NH:40][CH2:39][CH2:38]2)[CH2:34][O:33]1.CCN(C(C)C)C(C)C>CS(C)=O>[NH2:22][C:12]1[CH:13]=[CH:14][C:15]([C:17]2[S:18][CH:19]=[CH:20][CH:21]=2)=[CH:16][C:11]=1[NH:10][C:8](=[O:9])[C:5]1[CH:4]=[CH:3][C:2]([N:40]2[CH2:41][CH2:42][C:35]3([CH2:34][O:33][P:32]([CH3:31])(=[O:43])[O:37][CH2:36]3)[CH2:38][CH2:39]2)=[N:7][CH:6]=1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 57717453tert-Butyl 2-(6-chloronicotinamido)-4-(thiophen-2-yl)phenylcarbamateHCID 86635273HCID 86635273, compound

Product 1

HCID 57925895n-[2-Amino-5-(2-thienyl)phenyl]-6-(3-methyl-3-oxido-2,4-dioxa-9-aza-3-phosphaspiro[5.5]undec-9-yl)nicotinamide

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
90 °C

Procedure

tert-Butyl [2-{[(6-chloropyridin-3-yl)carbonyl]amino}-4-(2-thienyl)phenyl]-carbamate (150 mg, 0.35 mmol), 3-methyl-2,4-dioxa-9-aza-3-phosphaspiro[5.5]undecane 3-oxide hydrochloride (169 mg, 0.70 mmol), and DIEA (183 μL, 1.05 mmol) were combined in DMSO (4 mL) and stirred at 90° C. for 24 h. The mixture was directly purified by reverse phase HPLC (35-90% MeCN/water w/0.025% TFA) to afford the desired product as a yellow solid. The solid was dissolved in a mixture of CH2Cl2 (4 mL) and TFA (1 mL) and stirred at room temperature for 2 h. The solution was diluted with 1,2-DCE and evaporated. The resulting residue was purified by reverse phase HPLC (10-70% MeCN/water w/0.025% TFA). Fractions containing the product were diluted with saturated NaHCO3 and extracted with EtOAc (3×). The combined organic layers were washed with brine, dried (MgSO4), and evaporated to give the desired product as a colorless solid. 1H NMR (DMSO-d6, 600 MHz) δ 9.48 (d, J=3.3, 1H), 8.72 (t, J=2.7 Hz, 1H), 8.08-8.05 (m, 1H), 7.43 (d, J=2.3 Hz, 1H), 7.33 (dd, J=4.9, 0.9 Hz, 1H), 7.26 (dt, J=8.4, 1.7 Hz, 1H), 7.22 (dd, J=3.6, 1.2 Hz, 1H), 7.02 (dd, J=5.0, 3.6 Hz, 1H), 6.78 (d, J=8.4 Hz, 1H), 6.51 (dd, J=8.9, 6.0 Hz, 1H), 5.10 (s, 2H), 4.15-3.97 (m, 3H), 3.93-3.82 (m, 1H), 3.62-3.50 (m, 3H), 3.36-3.28 (m, 1H), 2.06-1.98 (m, 1H), 1.93-1.80 (m, 3H), 1.50 (d, J=17.4 Hz, 1.5H), 1.49 (d, J=17.4 Hz, 1.5H). MS: cal'd 499 (MH+), exp 499 (MH+).

Workup

  1. customThe mixture was directly purified by reverse phase HPLC (35-90% MeCN/water w/0.025% TFA)

Sources & evidence

ORD record
ord-f9b271937b204b2cb4f46a12151d729b
Source dataset
uspto-grants-2011_07
Patent number
US07981874B2

Reaction notes

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