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Thursday 25 September 2014

COBICISTAT

Cobicistat, GS-9350
1004316-88-4
40 H 53 N 7 O 5 S 2
N-[1(R)-Benzyl-4(R)-[2(S)-[3-(2-isopropylthiazol-4-ylmethyl)-3-methyl]ureido]-4-(4-morpholinyl)butyramido]-5-phenylpentyl]carbamic acid thiazol-5-ylmethyl ester
(1,3-thiazol-5-yl) methyl (5S, 8R, 11R) -8,11-dibenzyl-2-methyl-5-[2 - (morpholin-4-yl) ethyl] -1 – [2 - (propan-2-yl) -1,3-thiazol-4-yl] -3,6-dioxo-2 ,4,7,12-tetraazatridecan-13-oate
cytochrome P450 3A4 (CYP3A4) inhibitor

Cobicistat (GS-9350): A potent and selective inhibitor of human CYP3A as a novel pharmacoenhancer
ACS Med Chem Lett 2010, 1(5): 209
Abstract Image



1-Benzyl-4-{2-[3-(2-isopropyl-thiazol-4-ylmethyl)-3-methyl-ureido]-4-morpholin-4-yl-butyrylamino}-5-phenyl-pentyl)-carbamic acid thiazol-5-ylmethyl ester (GS-9350)
HPLC (Chiral CelROD-H, Chiral Technologies Inc;heptane/iPrOH = 70/30).
1H NMR (CD3OD)
δ8.98 (1 H, s), 7.82 (1 H, s), 7.25-7.05
(11 H, m), 5.25-5.10 (2 H, m), 4.60-4.50 (2 H, m), 4.21-4.03 (2 H, m), 3.82-3.72 (1
H, m), 3.65-3.65 (4 H, m), 3.35-3.25 (1 H, m), 2.98 (3 H, s), 2.8-2.6 (4 H, m), 2.4-2.2
(6 H, m), 1.95-1.8 (1 H, m), 1.8-1.6 (1 H, m), 1.6-1.4 (4 H, m), 1.42-1.32 (6 H, m).
MS (ESI) m/z: 776.2 (M+H)+.
HRMS calc. for C40H53N7O5S2: 775.355, found: 775.353.



US 2014088304
The product I was isolated as the stock solution in ethanol (35.0 kg product, 76.1% yield).
1H NMR (dDMSO) δ□ 9.05 (s, 1H), 7.85 (s, 1H), 7.52 (d, 1H), 7.25-7.02 (m, 12H), 6.60 (d, 1H), 5.16 (s, 2H), 4.45 (s, 2H), 4.12-4.05 (m, 1H), 3.97-3.85 (m, 1H), 3.68-3.59 (m, 1H), 3.57-3.45 (m, 4H), 3.22 (septets, 1H), 2.88 (s, 3H), 2.70-2.55 (m, 4H), 2.35-2.10 (m, 6H), 1.75 (m, 1H), 1.62 (m, 1H), 1.50-1.30 (m, 4H), 1.32 (d, 6H).
13C NMR (CD3OD) δ 180.54, 174., 160.1, 157.7, 156.9, 153.8, 143.8, 140.1, 140.0, 136.0, 130.53, 130.49, 129.4, 127.4, 127.3, 115.5, 67.7, 58.8, 56.9, 55.9, 54.9, 53.9, 51.6, 49.8, 42.7, 42.0, 35.4, 34.5, 32.4, 32.1, 29.1, 23.7.


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