3-[(2-methylpropan-2-yl)oxy]propanoic acid

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Mixture of 4-(2-fluoro-4-methanesulfonyl-phenoxy)-5-methyl-6-(piperidin-4-yloxy)-pyrimidine (76 mg, 0.2 mmole), 3-tert-butoxy-propionic acid (0.26 mmole, 1.3 eq), HATU (0.26 mmole, 1.3 eq), and triethylamine (0.4 mmole, 2 eq) in 2 mL DMF was stirred at room temp for 2 hours. Mixture was purified by HPLC to give compound C161 as a white solid (88 mg, 86%). 1H NMR (CDCl3, 400 MHz) δ 1.20 (s, 9H), 1.91-1.96 (m, 2H), 2.02-2.10 (m, 2H), 2.22 (s, 3H), 2.72 (t, 2H), 3.11 (s, 3H), 3.62-3.64 (m, 2H), 3.72 (t, 2H), 3.86-3.91 (m, 2H), 5.41-5.46 (m, 1H), 7.44 (t, 1H), 7.78-7.82 (m, 2H), 8.23 (s, 1H). Exact mass calculated for C24H32FN3O6S 509.2, found 510.6 (MH+). Mixture was purified by HPLC

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound is prepared as described for (R)-2-benzyloxy-N-[(1S,2R,3S,4R)-4-(2,6-dichloro-purin-9-yl)-2,3-dihydroxy-cyclopentyl]-propionamide (Example 181, Step 1), by replacing (R)-2-benzyloxy-propionic acid with 3-tert-butoxypropionic acid.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound is prepared as described for (R)-2-benzyloxy-N-[(1S,2R,3S,4R)-4-(2,6-dichloro-purin-9-yl)-2,3-dihydroxy-cyclopentyl]-propionamide (Example 181, Step 1), by replacing (R)-2-benzyloxy-propionic acid with 3-tert-butoxypropionic acid.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound is prepared as described for (R)-2-benzyloxy-N-[(1S,2R,3S,4R)-4-(2,6-dichloro-purin-9-yl)-2,3-dihydroxy-cyclopentyl]-propionamide (Example 181, Step 1), by replacing (R)-2-benzyloxy-propionic acid with 3-tert-butoxypropionic acid.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Mixture of 4-(2-fluoro-4-methanesulfonyl-phenoxy)-5-methyl-6-(piperidin-4-yloxy)-pyrimidine (76 mg, 0.2 mmole), 3-tert-butoxy-propionic acid (0.26 mmole, 1.3 eq), HATU (0.26 mmole, 1.3 eq), and triethylamine (0.4 mmole, 2 eq) in 2 mL DMF was stirred at room temp for 2 hours. Mixture was purified by HPLC to give compound C161 as a white solid (88 mg, 86%). 1H NMR (CDCl3, 400 MHz) δ 1.20 (s, 9H), 1.91-1.96 (m, 2H), 2.02-2.10 (m, 2H), 2.22 (s, 3H), 2.72 (t, 2H), 3.11 (s, 3H), 3.62-3.64 (m, 2H), 3.72 (t, 2H), 3.86-3.91 (m, 2H), 5.41-5.46 (m, 1H), 7.44 (t, 1H), 7.78-7.82 (m, 2H), 8.23 (s, 1H). Exact mass calculated for C24H32FN3O6S 509.2, found 510.6 (MH+). Mixture was purified by HPLC

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Mixture of 4-(2-fluoro-4-methanesulfonyl-phenoxy)-5-methyl-6-(piperidin-4-yloxy)-pyrimidine (76 mg, 0.2 mmole), 3-tert-butoxy-propionic acid (0.26 mmole, 1.3 eq), HATU (0.26 mmole, 1.3 eq), and triethylamine (0.4 mmole, 2 eq) in 2 mL DMF was stirred at room temp for 2 hours. Mixture was purified by HPLC to give compound C161 as a white solid (88 mg, 86%). 1H NMR (CDCl3, 400 MHz) δ 1.20 (s, 9H), 1.91-1.96 (m, 2H), 2.02-2.10 (m, 2H), 2.22 (s, 3H), 2.72 (t, 2H), 3.11 (s, 3H), 3.62-3.64 (m, 2H), 3.72 (t, 2H), 3.86-3.91 (m, 2H), 5.41-5.46 (m, 1H), 7.44 (t, 1H), 7.78-7.82 (m, 2H), 8.23 (s, 1H). Exact mass calculated for C24H32FN3O6S 509.2, found 510.6 (MH+). Mixture was purified by HPLC

Conditions: temp:-15.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Carboxylic acid, e.g., 3-tert-butoxypropionic acid (35 mg, 0.24 mmol), was dissolved in THF (2 mL). The resulting solution was cooled down to −15° C. NMM (84 μL, 0.76 mmol), followed by isobutyl chloroformate (33 μL, 0.25 mmol), were added. The mixture was stirred at −15° C. for 30 min. Intermediate Id, e.g. N-[(1R,2Z)-2-amino-2-(hydroxyimino)-1-phenylethyl]-3-(biphenyl-4-ylsulfonyl)-1,3-thiazolidine-2-carboxamide (108 mg, 0.22 mmol) in THF (2 mL) was added dropwise. The mixture was stirred overnight, letting the temperature increasing up to RT. Solvents were evaporated. The resulting oil was dissolved in AcOEt, and washed with sat NH4Cl and sat NaHCO3. Aqueous phases were extracted with two portions of AcOEt. Combined organic phases were dried over MgSO4, filtrated and evaporated, affording intermediate Id′, e.g. 3-(biphenyl-4-ylsulfonyl)-N-[(2E)-2-[(3-tert-butoxypropanoyl)amino]-2-(hydroxyimino)-1-phenylethyl]-1,3-thiazolidine-2-carboxamide (118 mg, 86% yield), which was directly used in the next step. were added The mixture was stirred overnight increasing up to RT Solvents were evaporated The resulting oil was dissolved in AcOEt washed Aqueous phases were extracted with two portions of AcOEt Combined organic phases were dried over MgSO4 filtrated evaporated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The title compound is prepared as described for (R)-2-benzyloxy-N-[(1S,2R,3S,4R)-4-(2,6-dichloro-purin-9-yl)-2,3-dihydroxy-cyclopentyl]-propionamide (Example 181, Step 1), by replacing (R)-2-benzyloxy-propionic acid with 3-tert-butoxypropionic acid.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: BOP chloride (0.079 g, 0.309 mmol) was added to a solution of 5-amino-N-({4-chloro-3-[(3-chloro-5-cyanophenyl)oxy]-2-fluorophenyl}methyl)-1H-indole-2-carboxamide trifluoroacetate (0.060 g, 0.103 mmol), 3-[(1,1-dimethylethyl)oxy]propanoic acid (0.015 mL, 0.103 mmol) and diisopropylethylamine (0.090 mL, 0.514 mmol) in DMF (1 mL). The mixture was stirred at room temperature for 2 hr. The reaction mixture was extracted with ethyl acetate and water. The organic layer was washed with water, dried over sodium sulfate and concentrated. The residue was purified by flash chromatography (hexane:ethyl acetate) to give the title compound (0.041 g, 67%) as a white solid. ES MS: m/z 597 (M+1). The reaction mixture was extracted with ethyl acetate and water The organic layer was washed with water dried over sodium sulfate concentrated The residue was purified by flash chromatography (hexane:ethyl acetate)