Hydrochloric Acid → HCID 136373678, compound

HRID 601263Notes

Reaction equation

[O:1]=[S:2]1(=[O:28])[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[NH:5][C:4]([C:12]2C(=O)[N:16]([N:19]=[CH:20][CH:21](C)[CH3:22])[C:15]3[CH:24]=[CH:25][S:26][C:14]=3[C:13]=2[OH:27])=[N:3]1.[CH3:29][OH:30].[BH4-].[Li+].Cl>O1CCCC1.O>[CH:20]1([NH:19][N:16]2[C:29](=[O:30])[C:12]([C:4]3[NH:5][C:6]4[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=4[S:2](=[O:1])(=[O:28])[N:3]=3)=[C:13]([OH:27])[C:14]3[S:26][CH:25]=[CH:24][C:15]2=3)[CH2:21][CH2:22][CH2:8][CH2:7][CH2:6][CH2:11]1

Participants

Conditions

Temperature: 25 °C

Procedure

The product of Example 269A (0.06 g, 0.13 mmol) in tetrahydrofuran (4 mL) and methanol (0.011 mL, 0.26 mmol) at 0° C. was treated dropwise with a 2.0M solution of lithium borohydride in tetrahydrofuran (0.10 mL, 0.2 mmol). The reaction was stirred at 25° C. for 1 hour, acidified with 1M hydrochloric acid a pH of approximately 2-4, diluted with water (10 mL), and the resulting precipitate was collected by filtration and dried. The crude product was chromatographed on silica gel with 98:2 dichloromethane/methanol to give the title compound. The sodium salt of the title compound was prepared according to the procedure of Example 1D. 1H NMR (300 MHz, DMSO-d6) δ ppm 1.35 (m, 4 H) 1.50 (m, 4 H) 1.64 (m, 3 H) 1.86 (m, 1 H) 2.56 (m, 1 H) 5.62 (d, J=2.94 Hz, 1 H) 7.12 (d, J=5.52 Hz, 1 H) 7.19 (d, J=8.09 Hz, 1 H) 7.26 (t, J=7.54 Hz, 1 H) 7.53 (m, 1 H) 7.64 (d, J=7.72 Hz, 1 H) 7.72 (d, J=5.15 Hz, 1 H) 15.92 (s, 1 H). MS (ESI−) m/z 457 (M−H)−.

Workup

filtrationthe resulting precipitate was collected by filtration
customdried
customThe crude product was chromatographed on silica gel with 98:2 dichloromethane/methanol

Sources & evidence

ORD record: ord-25500ee58e0d474abe6c9a29c330a324
Source dataset: uspto-grants-2011_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07902203B2

Reaction notes

Loading…