Sodium Carbonate → 5-(3-Benzyloxy-1-fluoro-7-vinylnaphthalen-2-yl)-1,1-dioxo-1,2,5-thiadiazolidin-3-one

HRID 889262Notes

Reaction equation

[CH2:1]([O:8][C:9]1[C:10]([N:21]2[S:25](=[O:27])(=[O:26])[NH:24][C:23](=[O:28])[CH2:22]2)=[C:11]([F:20])[C:12]2[C:17]([CH:18]=1)=[CH:16][CH:15]=[C:14](Br)[CH:13]=2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:29][C:30]1(C)C(C)(C)OB(C=C)O1.C([O-])([O-])=O.[Na+].[Na+]>COCCOC>[CH2:1]([O:8][C:9]1[C:10]([N:21]2[S:25](=[O:27])(=[O:26])[NH:24][C:23](=[O:28])[CH2:22]2)=[C:11]([F:20])[C:12]2[C:17]([CH:18]=1)=[CH:16][CH:15]=[C:14]([CH:29]=[CH2:30])[CH:13]=2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 110 °C

Procedure

To a microwave vial is added 5-(3-benzyloxy-7-bromo-1-fluoronaphthalen-2-yl)-1,1-dioxo-1,2,5-thiadiazolidin-3-one (340 mg, 0.73 mmol) (intermediate from preparing Example 16), 4,4,5,5-tetramethyl-2-vinyl-1,3,2-dioxaborolane (0.24 mL, 1.46 mmol), polystyrene tetrakis(triphenylphosphine)palladium(0) (0.1 mmole/g) (365 mg, 0.0365 mmol), Na2CO3 (2 M, 1.83 mL, 3.65 mmol) and DME (2.5 mL). The mixture is then heated in a microwave at 110° C. for 30 min. The resin is then filtered and the residue is purified quickly by Biotage reverse phase, eluting with 10-90% EtOH/water to give fractions containing the title compound: MS (M+H)+=413. The fractions are combined and used in the next step without concentration.

Workup

filtrationThe resin is then filtered
customthe residue is purified quickly by Biotage reverse phase
washeluting with 10-90% EtOH/water
customto give fractions

Sources & evidence

ORD record: ord-da2af255f5e443be8bab1732c66f07ce
Source dataset: uspto-grants-2012_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08252820B2

Reaction notes

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