1-ethynylcyclopentan-1-ol

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

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

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

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: Using Method C above, 1-ethynyl-1-cyclopentanol (35.8 mg, 0.33 mmol) (Aldrich) was coupled with (Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (50 mg, 0.13 mmol) (Starting Material 6) using (Ph3P)4Pd (15 mg) and CuI (2.5 mg) as catalyst in DMF (4 mL) and Et3N (4 mL) as solvent at 80° C. for 5 h to yield (Z)-1,3-Dihydro-5-fluoro-4-[(1-hydroxy-cyclopentyl)ethynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 32 mg, 67%).

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

Procedure: Using Method D above, 1-ethynyl-cyclopentanol (86.3 mg, 0.78 mmol) (Aldrich) was coupled with (Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (0.1 g, 0.31 mmol) (Starting Material 1 above) using DPPFPdCl2 (12.6 mg) and CuI (3 mg) as catalyst in DMF (3 mL) and Et3N (3 mL) as solvent at 85° C. for 2 days to yield (Z)-1,3-dihydro-4-[(1-hydroxycyclopentyl)ethynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 43 mg, 40%).

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

Procedure: Using Method C above, 1-ethynyl-1-cyclopentanol (35.8 mg, 0.33 mmol) (Aldrich) was coupled with (Z)-1,3-dihydro-5-fluoro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (50 mg, 0.13 mmol) (Starting Material 6) using (Ph3P)4Pd (15 mg) and Cul (2.5 mg) as catalyst in DMF (4 mL) and Et3N (4 mL) as solvent at 80° C. for 5 h to yield (Z)-1,3-Dihydro-5-fluoro-4-[(1-hydroxycyclopentyl)ethynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 32 mg, 67%).

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

Procedure: Using Method D above, 1-ethynyl-cyclopentanol (86.3 mg, 0.78 mmol) (Aldrich) was coupled with (Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (0.1 g, 0.31 mmol) (Starting Material 1 above) using DPPFPdCl2 (12.6 mg) and Cul (3 mg) as catalyst in DMF (3 mL) and Et3N (3 mL) as solvent at 85° C. for 2 days to yield (Z)-1,3-dihydro-4-[(1-hydroxycyclopentyl)ethynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 43 mg, 40%).

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

Procedure: In analogy to example 37.5 and 37.6, 1-Ethinylcyclopentanol and N-Methyl-allylamine were converted to yield Allyl-(1-ethynyl-cyclopentyl)-methyl-amine as colorless oil, MS: 163 (M).

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

Procedure: Sonogashira reaction of bromide 25 with 1-ethynylcyclopentanol yielded 2,2,2-trifluoro-N-(3-hydroxy-3-(3-((1-hydroxycyclopentyl)ethynyl)phenyl)propyl)-acetamide as brown oil. Yield (0.55 g, 55%): 1H NMR (400 MHz, CDCl3) δ 7.41 (s, 1H), 7.28-7.35 (m, 3H), 4.85-4.87 (m, 1H), 3.66-3.70 (m, 1H), 3.38-3.44 (m, 1H), 2.41 (bs, 1H), 1.76-2.08 (m, 10H).

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

Procedure: In analogy to example 37.5 and 37.6, 1-Ethinylcyclopentanol and N-Methyl-allylamine were converted to yield Allyl-(1-ethynyl-cyclopentyl)-methyl-amine as colorless oil, MS: 163 (M).