Thiophene-3-boronic acid → HCID 11358175, compound

HRID 749819Notes

Reaction equation

HRID 749819 reaction equation
C(OC([N:8]1[CH2:17][CH2:16][C:15]2[C:11](=[C:12](OS(C(F)(F)F)(=O)=O)[N:13]([CH:18]3[CH2:22][CH2:21][CH2:20][CH2:19]3)[N:14]=2)[CH2:10][CH2:9]1)=O)(C)(C)C.[S:31]1[CH:35]=[CH:34][C:33](B(O)O)=[CH:32]1>>[CH:18]1([N:13]2[C:12]([C:33]3[CH:34]=[CH:35][S:31][CH:32]=3)=[C:11]3[C:15]([CH2:16][CH2:17][NH:8][CH2:9][CH2:10]3)=[N:14]2)[CH2:19][CH2:20][CH2:21][CH2:22]1

Participants

3

Reactant 2

HCID 581760Thiophene-3-boronic acidHCID 86598377HCID 86598377, compound

Product 1

HCID 11358175HCID 11358175, compoundYield 89.9%

Procedure

The title compound (114 mg) was prepared as in Example 177, Steps C and D, using 200 mg of 2-cyclopentyl-3-trifluoromethanesulfonyloxy-4,5,7,8-tetrahydro-2H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester (Example 180, Step A) and 169 mg of 3-thiopheneboronic acid. MS (ESI): exact mass calculated for C16H21N3S, 287.15; found, m/z 288.4 [M+H]+. 1H NMR (500 MHz, CDCl3): 7.68-7.63 (m, 1H), 7.56-7.51 (m, 1H), 7.17-7.12 (m, 1H), 4.58 (m, 1H), 3.43-3.37 (m, 2H), 3.34-3.28 (m, 2H), 3.19-3.14 (m, 2H), 2.86-2.80 (m, 2H), 2.04-1.85 (m, 6H), 1.67-1.57 (m, 2H).

Sources & evidence

ORD record
ord-0e32a70d0b184d1c9bbbfe58303254e1
Source dataset
uspto-grants-2008_07
Patent number
US07402680B2

Reaction notes

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