Tri(butyl)vinyltin → HCID 54575438, compound

HRID 2405003Notes

Reaction equation

HRID 2405003 reaction equation
Br[C:2]1[C:3](=[O:19])[N:4]([C:8]2[C:13]([CH3:14])=[CH:12][C:11]([N+:15]([O-:17])=[O:16])=[CH:10][C:9]=2[CH3:18])[CH:5]=[CH:6][CH:7]=1.C(C([Sn])=C(CCCC)CCCC)CCC.[CH3:35][C:36]1[CH:41]=[C:40]([N+:42]([O-:44])=[O:43])[CH:39]=[C:38]([CH3:45])[C:37]=1[N:46]1[CH:51]=[CH:50][CH:49]=[C:48]([CH:52]=[CH2:53])[C:47]1=[O:54]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:35][C:36]1[CH:41]=[C:40]([N+:42]([O-:44])=[O:43])[CH:39]=[C:38]([CH3:45])[C:37]=1[N:46]1[CH:51]=[CH:50][CH:49]=[C:48]([CH:52]=[CH2:53])[C:47]1=[O:54].[CH3:18][C:9]1[CH:10]=[C:11]([N+:15]([O-:17])=[O:16])[CH:12]=[C:13]([CH3:14])[C:8]=1[N:4]1[CH:5]=[CH:6][CH:7]=[C:2]([CH2:48][CH2:47][OH:54])[C:3]1=[O:19]

Participants

6

Reactant 3

HCID 53438229Tri(butyl)vinyltinHCID 59410169HCID 59410169, compoundHCID 594102073-Bromo-1-(2,6-dimethyl-4-nitrophenyl)pyridin-2(1H)-one

Product 2

HCID 54575438HCID 54575438, compoundHCID 59410169HCID 59410169, compound

Reagents, catalysts & solvents 1

HCID 178418397HCID 178418397, compoundCatalyst

Procedure

To prepare the compound of the Formula (Ia), 3-bromopyridin-2(1H)-one (III) is reacted with 1-fluoro-2,5-dimethyl-4-nitrobenzene (IV) to give 3-bromo-1-(2,6-dimethyl-4-nitrophenyl)pyridin-2(1H)-one (V). Then, (V) is converted with tributylvinyl tin and tetrakis(triphenylphosphine)palladium into 1-(2,6-dimethyl-4-nitrophenyl)-3-vinylpyridin-2(1H)-one (VI). Hydroboration and oxidation of (VI) produces 1-(2,6-dimethyl-4-nitrophenyl)-3-(2-hydroxyethyl)pyridin-2(1H)-one (VII). In order to protect the hydroxy group, (VII) is reacted with tert-butyl(chloro)diphenylsilane in the presence of a base, giving 3-(2-{[tert-butyl(diphenyl)silyl]oxy}ethyl)-1-(2,6-dimethyl-4-nitrophenyl)pyridin-2(1H)-one (VIII). The reduction of the nitro group in (VIII) leads to 1-(4-amino-2,6-dimethylphenyl)-3-(2-{[tert-butyl(diphenyl)silyl]oxy}ethyl)pyridin-2(1H)-one (IX). Then follows the reaction of (IX) with (S)-epoxyphthalimide (X) to give 2-[(2R)-3-({4-[3-(2-{[tert-butyl(diphenyl)silyl]oxy}ethyl)-2-oxopyridin-1(2H)-yl]-3,5-dimethylphenyl}amino)-2-hydroxypropyl]-1H-isoindole-1,3(2H)-dione (XI). Ring closure to the oxazolidinone and cleaving off the phthalimide group produces starting from (XI) 1-{4-[(5S)-5-(aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]-2,6-dimethylphenyl}-3-(2-{[tert-butyl-(diphenyl)silyl]oxy}ethyl)pyridin-2(1H)-one (XII), which is reacted with 5-chlorothiophene-2-carbonyl chloride (XIII) to give N-[((5S)-3-{4-[3-(2-{[tert-butyl-(diphenyl)silyl]oxy}ethyl)-2-oxopyridin-1(2H)-yl]-3,5-dimethylphenyl}-2-oxo-1,3-oxazolidin-5-yl)methyl]-5-chlorothiophene-2-carboxamide (XIV). Cleaving off the protective group in (XIV) produces 5-chloro-N-[((5S)-3-{4-[3-(2-hydroxyethyl)-2-oxopyridin-1(2H)-yl]-3,5-dimethylphenyl}-2-oxo-1,3-oxazolidin-5-yl)methyl]thiophene-2-carboxamide (IIa), which is reacted with trans-4-aminohexanol (XV) to give 5-chloro-N-{[(5S)-3-{4-[3-{2-[(trans-4-hydroxycyclohexyl)amino]ethyl}-2-oxopyridin-1(2H)-yl]-3,5-dimethylphenyl}-2-oxo-1,3-oxazolidin-5-yl]methyl}thiophene-2-carboxamide (Ia).

Sources & evidence

ORD record
ord-9fce4f44a09d496a9861187d38097f82
Source dataset
uspto-grants-2014_08
Patent number
US08802860B2

Reaction notes

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