(3-hydroxyphenyl)boronic Acid → HCID 59643900, compound

HRID 2252437Notes

Reaction equation

HRID 2252437 reaction equation
Br[C:2]1[S:6][C:5]([C@H:7]2[N:10]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)[C:9](=[O:17])[C@@H:8]2[CH2:18][CH2:19][C@@H:20]([C:22]2[CH:27]=[CH:26][C:25]([F:28])=[CH:24][CH:23]=2)[OH:21])=[CH:4][CH:3]=1.[OH:29][C:30]1[CH:31]=[C:32](B(O)O)[CH:33]=[CH:34][CH:35]=1>>[F:28][C:25]1[CH:26]=[CH:27][C:22]([C@@H:20]([OH:21])[CH2:19][CH2:18][C@@H:8]2[C@@H:7]([C:5]3[S:6][C:2]([C:34]4[CH:33]=[CH:32][CH:31]=[C:30]([OH:29])[CH:35]=4)=[CH:3][CH:4]=3)[N:10]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)[C:9]2=[O:17])=[CH:23][CH:24]=1

Participants

3

Reactant 2

HCID 2734359(3-hydroxyphenyl)boronic AcidHCID 59643918HCID 59643918, compound

Product 1

HCID 59643900HCID 59643900, compoundYield 84%

Procedure

(3R,4S)-4-(5-Bromo-2-thienyl)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-1-phenylazetidin-2-one (90.2 mg, 0.196 mmol) was coupled with 3-hydroxyphenyl boronic acid (32.2 mg, 0.233 mmol) under standard Suzuki conditions illustrated by Example 42. Purification by chromatography (12 g silica gel, 15% to 100% ethyl acetate-hexane) afforded (3R,4S)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-4-[5-(3-hydroxyphenyl)-2-thienyl]-1-phenylazetidin-2-one (77.6 mg, 84% yield) as a clear foam; Rf 0.36 (1:1 ethyl acetate-hexane); 1H NMR (300 MHz, CD3OD) δ 7.31-6.93 (m, 14H), 6.70 (ddd, J=8.0, 2.3, 1.0 Hz, 1H), 4.89-4.88 (m, 1H), 4.64-4.59 (m, 1H), 3.77 (br s, 2H), 3.25-3.21 (m, 1H), 1.97-1.83 (m, 4H) ppm; MS [M−OH]+ 456.0.

Workup

  1. customPurification by chromatography (12 g silica gel, 15% to 100% ethyl acetate-hexane)

Sources & evidence

ORD record
ord-6fed3270c0444bed9802f9ecb7ba26b2
Source dataset
uspto-grants-2008_01
Patent number
US07320972B2

Reaction notes

Loading…