Phenylboronic Acid → tert-butyl (6aS,10aR)-2-phenyl-4,5,7,8,10,10a-hexahydropyrido[4,3-b]pyrrolo [3,2,1-hi]indole-9(6aH)-carboxylate

HRID 1266079Notes

Reaction equation

Br[C:2]1[CH:3]=[C:4]2[C:8]3=[C:9]([CH2:11][CH2:12][N:7]3[C@H:6]3[CH2:13][CH2:14][N:15]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:16][C@@H:5]23)[CH:10]=1.[C:24]1(B(O)O)[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1>>[C:24]1([C:2]2[CH:3]=[C:4]3[C:8]4=[C:9]([CH2:11][CH2:12][N:7]4[C@H:6]4[CH2:13][CH2:14][N:15]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:16][C@@H:5]34)[CH:10]=2)[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1

Participants

Reactant 2

HCID 66827Phenylboronic Acid

HCID 20577007Tert-butyl (6aS,10aR)-2-bromo-4,5,7,8,10,10a-hexahydropyrido[4,3-b]pyrrolo[3,2,1-hi]indole-9(6aH)carboxylate

Product 1

HCID 11740272tert-butyl (6aS,10aR)-2-phenyl-4,5,7,8,10,10a-hexahydropyrido[4,3-b]pyrrolo [3,2,1-hi]indole-9(6aH)-carboxylate

Procedure

The title compound was prepared by the method of Example 89 step C from tert-butyl (6aS,10aR)-2-bromo-4,5,7,8,10,10a-hexahydropyrido[4,3-b]pyrrolo[3,2,1-hi]indole-9(6aH) carboxylate (189 mg, 0.5 mmol) and phenylboronic acid (122 mg, 1.0 mmol) to afford after chromatographic purification the title compound (74 mg, 20%). 1H NMR (CDCl3, 300 MHz) δ7.49 (d, 2H, J=7.7 Hz), 7.34-7.40 (m, 2H), 7.25-7.30 (m, 1H), 7.20 (s, 1H), 7.15 (s, 1H), 3.85-3.95 (m, 1H), 3.68-3.70 (m, 1H), 3.24-3.52 (m, 4H), 2.84-3.22 (m, 4H), 1.82-1.94 (m, 2H), 1.49 (s, 9H) ppm. MS-APCI: 377 [M+H+].

Workup

customto afford
customafter chromatographic purification the title compound (74 mg, 20%)

Sources & evidence

ORD record: ord-807520a6ec344782b05938bafebd828f
Source dataset: uspto-grants-2003_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06548493B1

Reaction notes

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