Hydrochloric Acid → HCID 136347350, compound

HRID 601188Notes

Reaction equation

[O:1]=[S:2]1(=[O:31])[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[NH:5][C:4]([C:12]2[C:13](=[O:30])[N:14]([N:23]=[C:24]3[CH2:28][CH2:27][CH:26]([CH3:29])[CH2:25]3)[C:15]3[C:20]([C:21]=2[OH:22])=[CH:19][CH:18]=[CH:17][CH:16]=3)=[N:3]1.CO.[BH4-].[Li+].Cl>O1CCCC1.O>[O:31]=[S:2]1(=[O:1])[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[NH:5][C:4]([C:12]2[C:13](=[O:30])[N:14]([NH:23][CH:24]3[CH2:28][CH2:27][CH:26]([CH3:29])[CH2:25]3)[C:15]3[C:20]([C:21]=2[OH:22])=[CH:19][CH:18]=[CH:17][CH:16]=3)=[N:3]1

Participants

Conditions

Temperature: 25 °C

Procedure

The product of Example 236A (0.068 g, 0.16 mmol) in tetrahydrofuran (2.0 mL) and methanol (0.010 mL, 0.28 mmol) at 0° C. was treated with dropwise addition of a 2.0M solution of lithium borohydride in tetrahydrofuran (0.100 mL, 0.20 mmol). The reaction was stirred at 25° C. for 1 hour, acidified with 1M hydrochloric acid to a pH of approximately 2-4, diluted with water, and the resulting precipitate was collected by filtration and dried. The crude product was chromatographed on silica gel with dichloromethane 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 1.03 (m, 3 H) 1.35 (m, 1 H) 1.78 (m, 4 H) 2.56 (m, J=5.52 Hz, 2 H) 3.69 (m, 1 H) 5.78 (m, 1 H) 7.05 (m, 1 H) 7.27 (m, 2 H) 7.52 (m, 2 H) 7.69 (m, 2 H) 8.06 (dd, J=7.72, 1.47 Hz, 1 H) 16.28 (s, 1 H). MS (ESI−) m/z 437 (M−H)−.

Workup

filtrationthe resulting precipitate was collected by filtration
customdried
customThe crude product was chromatographed on silica gel with dichloromethane

Sources & evidence

ORD record: ord-d4327021c47e4894a824d0bda6b53bca
Source dataset: uspto-grants-2011_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07902203B2

Reaction notes

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