(S)-Methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(3-bromophenyl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate → (S)-Methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(5'-fluoro-4'-methyl-2'-((S)-pent-4-en-2-yloxy)-[1,1'-biphenyl]-3-yl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate

HRID 1482037Notes

Reaction equation

[F:1][C:2]1[C:3]([CH3:17])=[CH:4][C:5]([O:11][C@H:12]([CH2:14][CH:15]=[CH2:16])[CH3:13])=[C:6](B(O)O)[CH:7]=1.[CH2:18]([O:21][C:22]1([CH3:55])[CH2:27][CH2:26][N:25]([C:28]2[N:33]3[CH:34]=[C:35]([C:37]4[CH:42]=[CH:41][CH:40]=[C:39](Br)[CH:38]=4)[N:36]=[C:32]3[CH:31]=[C:30]([CH3:44])[C:29]=2[C@H:45]([O:50][C:51]([CH3:54])([CH3:53])[CH3:52])[C:46]([O:48][CH3:49])=[O:47])[CH2:24][CH2:23]1)[CH:19]=[CH2:20].C(OC1(C)CCN(C2N3C=C(C4C=C(C5C=CC(F)=CC=5O[C@H](CC=C)C)C=CC=4)N=C3C=C(C)C=2[C@H](OC(C)(C)C)C(OC)=O)CC1)C=C>>[CH2:18]([O:21][C:22]1([CH3:55])[CH2:23][CH2:24][N:25]([C:28]2[N:33]3[CH:34]=[C:35]([C:37]4[CH:38]=[C:39]([C:6]5[CH:7]=[C:2]([F:1])[C:3]([CH3:17])=[CH:4][C:5]=5[O:11][C@H:12]([CH2:14][CH:15]=[CH2:16])[CH3:13])[CH:40]=[CH:41][CH:42]=4)[N:36]=[C:32]3[CH:31]=[C:30]([CH3:44])[C:29]=2[C@H:45]([O:50][C:51]([CH3:54])([CH3:53])[CH3:52])[C:46]([O:48][CH3:49])=[O:47])[CH2:26][CH2:27]1)[CH:19]=[CH2:20]

Participants

Reactant 3

HCID 118308811(S)-Methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(3-bromophenyl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate

HCID 118308907(S)-Methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(4'-fluoro-2'-((S)-pent-4-en-2-yloxy)-[1,1'-biphenyl]-3-yl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate

HCID 123357166(S)-(5-fluoro-4-methyl-2-(pent-4-en-2-yloxy)phenyl)boronic acid

Product 1

HCID 118308875(S)-Methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(5'-fluoro-4'-methyl-2'-((S)-pent-4-en-2-yloxy)-[1,1'-biphenyl]-3-yl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetateYield 72%

Procedure

Prepared in 72% yield from (S)-(5-fluoro-4-methyl-2-(pent-4-en-2-yloxy)phenyl)boronic acid and (S)-methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(3-bromophenyl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate following the procedure for (S)-methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(4′-fluoro-2′-((S)-pent-4-en-2-yloxy)-[1,1′-biphenyl]-3-yl)-7-methylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate. 1H NMR (400 MHz, CDCl3) δ 8.02 (s, 2H), 7.96-7.92 (m, 1H), 7.56-7.51 (m, 1H), 7.48-7.41 (m, 1H), 7.32 (s, 1H), 7.14-7.09 (m, 1H), 6.81 (d, J=6.5 Hz, 1H), 6.14-5.96 (m, 2H), 5.72 (ddt, J=17.1, 10.2, 7.0 Hz, 1H), 5.43 (dd, J=17.3, 1.8 Hz, 1H), 5.12-4.95 (m, 3H), 4.22-4.10 (m, 1H), 4.07-3.94 (m, 3H), 3.82 (t, J=10.5 Hz, 1H), 3.69 (s, 3H), 3.02 (d, J=7.8 Hz, 1H), 2.73 (d, J=8.5 Hz, 1H), 2.47 (d, J=0.8 Hz, 3H), 2.40-2.33 (m, 1H), 2.31 (d, J=1.5 Hz, 3H), 2.28-2.17 (m, 1H), 1.98 (dd, J=13.9, 2.6 Hz, 2H), 1.86-1.72 (m, 2H), 1.33 (s, 3H), 1.27 (s, 9H), 1.14 (d, J=6.0 Hz, 3H); LCMS (ESI, M+1): 698.35.

Sources & evidence

ORD record: ord-b2eb1b8c1498403a933cb6450f5b279c
Source dataset: uspto-grants-2016_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09409922B2

Reaction notes

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