2-Thiopheneboronic acid → HCID 11369761, compound

HRID 2106300Notes

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][CH:33]=[C:32]1B(O)O>>[CH2:21]([CH:18]([N:13]1[C:12]([C:32]2[S:31][CH:35]=[CH:34][CH:33]=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 27339602-Thiopheneboronic acid

HCID 86598378HCID 86598378, compound

Product 1

HCID 11369761HCID 11369761, compoundYield 37.2%

Procedure

The title compound (35 mg) was prepared as in Example 177, Steps C and D, using 148 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 122 mg of 2-thiopheneboronic acid. MS (ESI): exact mass calculated for C16H23N3S, 289.16; found, m/z 290.5 [M+H]+. 1H NMR (500 MHz, CDCl3): 7.72-7.67 (m, 1H), 7.25-7.21 (m, 1H), 7.13-7.09 (m, 1H), 4.01-3.94 (m, 1H), 3.43-3.38 (m, 2H), 3.34-3.28 (m, 2H), 3.20-3.14 (m, 2H), 2.86-2.80 (m, 2H), 1.95-1.85 (m, 2H), 1.79-1.69 (m, 2H), 0.71 (t, J=7.4 Hz, 3H).

Sources & evidence

ORD record: ord-6e59a54f331343098dbab180c2748ffa
Source dataset: uspto-grants-2009_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07579470B2

Reaction notes

Loading…