Thiophene-3-boronic acid → HCID 24873383, compound

HRID 2106296Notes

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]([CH2:21][CH3:22])[CH2:19][CH3:20])[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>>[CH2:21]([CH:18]([N:13]1[C:12]([C:33]2[CH:34]=[CH:35][S:31][CH:32]=2)=[C:11]2[C:15]([CH2:16][CH2:17][NH:8][CH2:9][CH2:10]2)=[N:14]1)[CH2:19][CH3:20])[CH3:22]

Participants

Reactant 2

HCID 581760Thiophene-3-boronic acid

HCID 86598378HCID 86598378, compound

Product 1

HCID 24873383HCID 24873383, compoundYield 99.7%

Procedure

The title compound (95 mg) was prepared as in Example 177, Steps C and D, using 150 mg of 2-(1-ethyl-propyl)-3-trifluoromethanesulfonyloxy-4,5,7,8-tetrahydro-2H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester (Example 183, Step A) and 126 mg of 3-thiopheneboronic acid. MS (ESI): exact mass calculated for C16H23N3S, 289.16; found, m/z 290.4 [M+H]+. 1H NMR (500 MHz, CDCl3): 7.68-7.64 (m, 1H), 7.52-7.48 (m, 1H), 7.12-7.07 (m, 1H), 3.93-3.86 (m, 1H), 3.44-3.39 (m, 2H), 3.34-3.28 (m, 2H), 3.22-3.17 (m, 2H), 2.85-2.79 (m, 2H), 1.95-1.84 (m, 2H), 1.79-1.69 (m, 2H), 0.71 (t, J=7.4 Hz, 3H).

Sources & evidence

ORD record: ord-2b5d631829bc4863820c98e8376402fd
Source dataset: uspto-grants-2009_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07579470B2

Reaction notes

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