Henagliflozin

Henagliflozin, SHR-3824 ,

CAS 1623804-44-3

C22-H24-Cl-F-O7

454.8756

PHASE 2 for the treatment of type 2 diabetes

HengRui (Originator)

UNII-21P2M98388; 21P2M98388; Henagliflozin; SHR3824; SHR-3824;

In April 2016, Jiangsu Hengrui Medicine is developing henagliflozin (phase 2 clinical trial), a sodium-glucose cotransporter-2 (SGLT-2) inhibitor, for treating type 2 diabetes. 

SGLT1 and SGLT2 inhibitors, useful for treating eg diabetes.

Henagliflozin proline is in phase II clinical trials by Jiangsu Hengrui (江苏恒瑞) for the treatment of type 2 diabetes.

1,6-dehydrated-1-C{4-chloro-3-[(3-fluoro-4-ethoxyphenyl)methyl]phenyl}-5-C-(hydroxymethyl)-β-L-idopyranose L-proline

(1 ^ 2345-5- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -1- (hydroxymethyl) 6,8 – alcohol dioxide

(1R,2S,3S,4R,5R)-5-[4-chloro-3-[(4-ethoxy-3-fluorophenyl)methyl]phenyl]-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol

Shanghai Hengrui Pharmaceutical Co., Ltd., 上海恒瑞医药有限公司, Jiangsu Hengrui Medicine Co., Ltd., 江苏恒瑞医药股份有限公司, Less «

• 01 May 2015 Jiangsu HengRui Medicine Co. initiates enrolment in a phase I drug interaction trial in volunteers in China (NCT02500485)
• 12 Feb 2015 Jiangsu HengRui Medicine plans a phase I trial for Type-2 diabetes mellitus in China (NCT02366377)
• 01 Feb 2015 Jiangsu HengRui Medicine initiates enrolment in a phase I trial for Type-2 diabetes mellitus in China (NCT02366351)

Henagliflozin is a novel sodium-glucose transporter 2 inhibitor and presents a complementary therapy to metformin for patients with T2DM due to its insulin-independent mechanism of action. This study evaluated the potential pharmacokinetic drug-drug interaction between henagliflozin and metformin in healthy Chinese male subjects. 2. In open-label, single-center, single-arm, two-period, three-treatment self-control study, 12 subjects received 25 mg henagliflozin, 1000 mg metformin or the combination. Lack of PK interaction was defined as the ratio of geometric means and 90% confidence interval (CI) for combination: monotherapy being within the range of 0.80-1.25. 3. Co-administration of henagliflozin with metformin had no effect on henagliflozin area under the plasma concentration-time curve (AUC_0-24) (GRM: 1.08; CI: 1.05, 1.10) and peak plasma concentration (C_max) (GRM: 0.99; CI: 0.92, 1.07). Reciprocally, co-administration of metformin with henagliflozin had no clinically significant on metformin AUC_0-24 (GRM: 1.09, CI: 1.02, 1.16) although there was an 11% increase in metformin C_max (GRM 1.12; CI 1.02, 1.23). All monotherapies and combination therapy were well tolerated. 4. Henagliflozin can be co-administered with metformin without dose adjustment of either drug.

PATENT

WO-2016050134

PATENT

WO2012019496

https://www.google.com/patents/WO2012019496A1?cl=en

Example 4

(1 ^ 2345-5- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -1- (hydroxymethyl) 6,8 – alcohol dioxide

first step

1-ethoxy-2-fluoro – benzene

A mixture of 2-fluoro-phenol 4a (6.7 g, 60 mmol) was dissolved in 66 mL of acetone, was added iodoethane (6.3 mL,

78 mmol) and potassium carbonate (12.4 g, 90 mmol), at reflux in an oil bath for 5 hours. The reaction solution was concentrated under reduced pressure, was added 100 mL of ethyl acetate and 60 mL of water, separated, the aqueous phase was extracted with ethyl acetate (30 mLx2), the organic phases combined, dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure, to give the title product 1-ethoxy-2-fluoro – benzene 4b (6.9 g, red oil). yield: 82.1%.

MS m / z (ESI): 280.2 [2M + 1]

The second step

(5-bromo-2-chloro – phenyl) – (4-ethoxy-3-fluoro-phenyl) – methanone A mixture of 5-bromo-2-chloro – benzoyl chloride 2a (12.4 g, 48.8 mmol) was dissolved a 100 mL of dichloromethane was added 1-ethoxy-2-fluoro – benzene 4b (6.84 g, 48.8 mmol), cooled to 0 ° C, was added portionwise aluminum (5.86 g, 44 mmol) chloride, 16 h. Was added dropwise under ice-cooling to the reaction mixture 20 mL of 2 M HCl solution, separated, the aqueous phase was extracted with 30 mL of dichloromethane, and the combined organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure to give the title The product (5-bromo-2-chloro – phenyl) – (4-ethoxy-3-fluoro-phenyl) – methanone 4c (12.7 g, yellow solid), yield: 72.6%.

MS m / z (ESI): 358.9 [M + l] Step

₍₅ – bromo-2-chloro – phenyl) – (4-ethoxy-3-fluoro-phenyl) – methanol (5-Bromo-2-chloro – phenyl) – (4-ethoxy -3 – fluoro – phenyl) -methanone 4c (12.7 g, 35.5 mmol) was dissolved in methanol and a 100 mL of tetrahydrofuran (ν: ν = 1: 1) mixed solvent, under an ice bath was added portionwise sodium borohydride (2.68 g, 70 mmol), and reacted at room temperature for 30 minutes. Add 15 mL of acetone, the reaction solution was concentrated under reduced pressure, 150 mL of ethyl acetate was added to dissolve the residue, washed with saturated sodium chloride solution (50 mLx2). The combined organic phase was dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure The filtrate, to give the title product (5-bromo-2-chloro – phenyl) – (4-ethoxy-3-fluoro-phenyl) – methanol 4d (12.7 g, orange oil), was used directly without isolation next reaction.

the fourth step

4 – [(5-bromo-2-chloro-phenyl) – methyl] Small-ethoxy-2-fluoro – benzene (5-bromo-2-chloro – phenyl) – (4-ethoxy -3 – fluoro – phenyl) methanol 4d (12.7 g, 35.3 mmol) was dissolved in a 100 mL of dichloromethane was added triethylsilane (16.9 mL, 106 mmol), was added dropwise boron trifluoride etherate (8.95 mL, 70.6 mmol ), for 3 hours. Was added 50 mL of saturated sodium bicarbonate solution, separated, the aqueous phase was extracted with ethyl acetate (100 mLx2), the organic phases combined, dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure, purified by silica gel column chromatography to elute B surfactant system resulting residue was purified to give the title product 4 – [(5-bromo-2-chloro – phenyl) methyl] -1-ethoxy-2-fluoro – benzene 4e (10 g, as a pale yellow oil ) yield: 82.4%.

_{1H NMR (400 MHz, CDC1 3} ): δ 7.33-7.27 (m, 3H), 6.95-6.90 (m, 3H), 4.14 (q, 2H), 4.01 (s, 2H), 1.49 (t, 3H)

the fifth step

(2 3R, 4S, 5 ^ 6R) -2- [4- chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -6- (hydroxymethyl) – 2-methoxy – tetrahydro-pyran-3,4,5-triol

4 – [(5-bromo-2-chloro – phenyl) methyl] -1-ethoxy-2-fluoro – benzene 4e (7.36 g, 21.4 mmol) was dissolved in 30 mL of tetrahydrofuran, cooled to -78 ° C, was added dropwise a solution of n-butyllithium in hexane (10.27 mL, 25.7 mmol), at -78 ° C to react 1 hour, a solution of 20 mL (3R, 4S, 5R, 6R) -3,4,5 – tris (trimethylsilyloxy) -6- (trimethylsilyloxy) tetrahydropyran-2-one 2f (llg, 23.6 mmol) in tetrahydrofuran at -78 ° C under reaction 2 h, 2.8 mL of methanesulfonic acid and 71 mL of methanol, the reaction at room temperature for 16 hours. Was added 100 mL of saturated sodium carbonate solution, the reaction solution was concentrated under reduced pressure, to the residue was added 50 mL of saturated sodium chloride solution, extracted with ethyl acetate (100 mLx3), organic phases were combined, dried over anhydrous magnesium sulfate, filtered, The filtrate was concentrated under reduced pressure, purified by silica gel column chromatography with eluent systems resulting A residue was purified to give the title product (2 3R, 4S, 5 6R) -2- [4- chloro-3 – [(4-ethoxyphenyl 3-fluoro-phenyl) – methyl] phenyl] -6- (hydroxymethyl) -2-methoxy – tetrahydro-pyran-3,4,5-triol 4f (5.7 g, white solid ) yield: 58.3%.

_{1H NMR (400 MHz, CD 3} OD): δ 7.56 (s, 1H), 7.48 (dd, 1H), 7.37 (dd, 1H), 6.95-6.87 (m, 3H), 4.08-4.07 (m, 4H) , 3.91 (m, 1H), 3.93-3.73 (m, 2H), 3.56-3.53 (m, 1H), 3.45-3.43 (m, 1H), 3.30 (s, 2H), 3.08 (s, 3H), 1.35 (t, 3H)

The sixth step

(2 3R, 4S, 5 6R) -6- [(tert-butyl (dimethyl) silyl) oxymethyl] -2- [4-chloro-3 – [(4-ethoxy-3-fluoro – phenyl) methyl] phenyl] -2-methoxy – tetrahydro-pyran-3,4,5-triol the (2 3R, 4S, 5 6R) -2- [4- chloro-3- [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -6- (hydroxymethyl) -2-methoxy – 4f tetrahydropyran-3,4,5-triol (5.7 g, 12.5 mmol) was dissolved in 50 mL of pyridine, followed by adding tert-butyldimethylsilyl chloride (2.26 g, 15 mmol) and 4-dimethylaminopyridine (305 mg, 2.5 mmol), for 16 hours. The reaction solution was concentrated under reduced pressure, was added 200 mL of ethyl acetate, washed with a saturated copper sulfate solution (50 mLx3). The combined organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure to give the title product (2 3R, 4S, 5 6R) -6- [(tert-butyl (dimethyl) silyl) oxymethyl] -2- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -2-methoxy – tetrahydro-pyran-3,4,5-triol 4g (7.14 g, colorless oil), without isolation directly used for the next reaction.

Seventh Step

[[(2R, 3R, 4S, 5R, 6 ^ -3,4,5- tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl yl] phenyl] -6-methoxy – tetrahydropyran-2-yl] methoxy] – tert-butyl – dimethyl-silane (2 3R, 4S, 5 6R) -6- [(tert butyl (dimethyl) silyl) oxymethyl] -2- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -2-methoxy yl – tetrahydro-pyran-3,4,5-triol 4g (7.14 g, 12.5 mmol) was dissolved in 100 mL N, N- dimethylformamide was added 60% sodium hydride under ice-cooling (2.5 g , 62.5 mmol), and reacted at room temperature for 40 minutes completed the opening force, was added benzyl bromide (7.5 mL, 62.5 mmol), reaction of 16 hours. 20 mL of methanol, the reaction solution was concentrated under reduced pressure, was added 200 mL of ethyl acetate and 50 mL of water to dissolve the residue, separated, the aqueous phase was extracted with ethyl acetate (50 mL), the organic phase was washed with water (50 mL), washed with saturated sodium chloride solution (50 mL), the combined organic phase was dried over anhydrous magnesium sulfate , filtered, and the filtrate was concentrated under reduced pressure to give the title product [[(2R, 3R, 4S, 5R, 6 ^ -3,4,5- tris-benzyloxy-6- [4-chloro-3 – [(4- ethoxy-3-fluoro-phenyl) – methyl] phenyl] -6-methoxy – tetrahydropyran-2-yl] methoxy] – tert-butyl – dimethylsilane 4h (10.5 g , yellow oil) yield: 99.8%.

Step Eight

[(2R, 3R, 4S, 5R, 6 -3,4,5- tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -6-methoxy – tetrahydropyran-2-yl] methanol

The [[(2R, 3R, 4S, 5R, 6 -3,4,5- tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl yl] phenyl] -6-methoxy – tetrahydropyran-2-yl] methoxy] – tert-butyl – dimethylsilane 4h (10.52 g, 12.5 mmol) was dissolved in 50 mL of methanol dropwise add acetyl chloride CO.13 mL, 1.9 mmol), for 1 hour. The reaction solution was concentrated under reduced pressure, purified by silica gel column chromatography with eluent systems B resultant residue was purified to give the title product [(2R, 3R, 4S, 5R, 6 -3,4,5- tris-benzyloxy–6 – [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -6-methoxy – tetrahydropyran-2-yl] methanol 4i (7.6 g , yellow oil yield: 83.6%.

Step Nine

(2 ^ 3456 3,4,5-tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] – 6-methoxy – tetrahydropyran-2-carbaldehyde

Oxalyl chloride (1.17 mL, 13.6 mmol) was dissolved in 20 mL of dichloromethane, cooled to -78 ° C, were added dropwise 20 mL of dimethyl sulfoxide (1.56 mL, 21.9 mmol) in methylene chloride and 50 mL [(2R, 3R, 4S, 5R, 6 -3,4,5- tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -6-methoxy – tetrahydropyran-2-yl] methanol 4i (7.6 g, 10.45 mmol) in methylene chloride, and reacted at -78 ° C for 30 min, triethylamine (7.25 mL, 52.3 mmol), 2 hours at room temperature was added 50 mL 1 M HCl solution, separated, the organic phase was washed with saturated sodium chloride solution (50 mL x 2), the aqueous phase was extracted with dichloromethane (50 mL), the combined organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure to give the title product (2 ^ 3456 3,4,5-tris-benzyloxy-6- [4-chloro-3 – [(4 – ethoxy-3-fluoro-phenyl) – methyl] phenyl] -6-methoxy – tetrahydropyran-2-carbaldehyde 4j (7.58 g, colorless oil), was used directly without isolation next reaction.

The tenth step

(2S, 3 4S, 5R, 6 -3,4,5- tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl ] -2- (hydroxymethyl) -6-methoxy – tetrahydropyran-2-carbaldehyde

The (23456 3,4,5-tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] – 6-methoxy – tetrahydropyran-2-carbaldehyde 4j (7.6 g, 10.45 mmol) was dissolved in 80 mL 1,4- dioxane, followed by adding 15.8 mL 37% aqueous formaldehyde and sodium hydroxide solution (31.35 mL, 31.35 mmol), reacted at 70 ° C for 16 h. Add 50 mL of saturated sodium chloride solution, extracted with ethyl acetate (50 mLx4), the organic phase was washed with saturated sodium bicarbonate solution (50 mL), washed with saturated sodium chloride solution (50 mL), the combined organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure to give the title product (23,456 benzyloxy-3,4,5-tris – 6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -2- (hydroxymethyl) -6-methoxy – tetrahydropyran – 2- formaldehyde _{4k (7.9g,} as a colorless oil), without isolation directly used for the next reaction.

Step Eleven

[(3 4S, 5R, 6 -3,4,5- tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] 2- (hydroxymethyl) -6-methoxy – tetrahydropyran-2-yl] methanol

The (23456 3,4,5-tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] – 2- (hydroxymethyl) -6-methoxy – tetrahydropyran-2-carbaldehyde 4k (7.9 g, 10.45 mmol) was dissolved in 50 mL of tetrahydrofuran and methanol (v: v = 2: 3) mixed solvent , was added sodium borohydride (794 mg, 20.9 mmol), for 30 minutes. Add a small amount of acetone, the reaction solution was concentrated under reduced pressure, purified by silica gel column chromatography with eluent systems resulting A residue was purified to give the title product, 5R, 6 -3,4,5-tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -2- (hydroxymethyl ) -6-methoxy – tetrahydropyran-2-yl] methanol 4m (l.ll g, colorless oil). yield: 14.1%.

Step Twelve

[(12345 ^ -2,3,4-tris-benzyloxy-5- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] 6,8-dioxa-bicyclo [3.2.1] octane-1-yl] methanol

The [(3S, 4S, 5R, 6 -3,4,5- tris-benzyloxy-6- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] benzene yl] -2- (hydroxymethyl) -6-methoxy – tetrahydropyran-2-yl] methanol 4m (l.ll g, 1.46 mmol) was dissolved in 20 mL of dichloromethane, cooled to -10 ° C, was added trifluoroacetic acid (0.23 mL, 3 mmol), and reacted at room temperature for 2 hours. 20 mL of saturated sodium bicarbonate solution, separated, the aqueous phase was extracted with dichloromethane (20 mL> <2), and the combined organic phase was dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure, purified by silica gel column chromatography with eluent systems B resultant residue was purified to give the title product [(1 2 3 4R, 5 -2,3,4- tris-benzyloxy-5- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] 6,8-dioxa-bicyclo [3.2.1] octane-1-yl] methanol 4nC830 mg, colorless oil). yield: 78.3%.

MS m / z (ESI): 742.3 [M + 18]

Thirteenth Step

(12345-5- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -1- (hydroxymethyl) -6,8 dioxa-bicyclo [3.2.1] octane-2,3,4-triol

The [(1 2 3 4R, 5S) -2,3,4- tris-benzyloxy-5- [4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] benzene yl] -6,8-dioxa-bicyclo [3.2.1] octane-1-yl] methanol 4n (830 mg, 1.14 mmol) was dissolved in 20 mL of tetrahydrofuran and methanol (v: v = l: l) the a mixed solvent of o-dichlorobenzene was added (1.3 mL, 1 1.4 mmol) and Pd / C (500 mg, 10%), purged with hydrogen three times, the reaction for 3 hours. The reaction solution was filtered, rinsed with a small amount of ethyl acetate, the filtrate was concentrated under reduced pressure, purified by silica gel column chromatography with eluent systems resulting A residue was purified to give the title product (1S, 2 3S, 4R, 5 -5- [ 4-chloro-3 – [(4-ethoxy-3-fluoro-phenyl) – methyl] phenyl] -1- (hydroxymethyl) -6,8-dioxa-bicyclo [3.2.1] octane-2,3,4-triol 4 (420 mg, white solid), yield: 81.0% MS m / z (ESI):. 472.2 [m + 18]

_{1H NMR (400 MHz, CD 3} OD): δ 7.47 (s, 1H), 7.42-7.35 (m, 2H), 6.95-6.87 (m, 3H), 4.16-4.14 (m, 1H), 4.06-4.02 ( m, 4H), 3.85-3.70 (m, 2H), 3.67-3.54 (m, 4H), 1.37 (t, 3H)

////////Henagliflozin, SHR-3824 , PHASE 2,  type 2 diabete,  UNII-21P2M98388,  21P2M98388,  SHR 3824,  SHR3824,

CCOc1ccc(cc1F)Cc2cc(ccc2Cl)[C@]34[C@@H]([C@H]([C@@H]([C@](O3)(CO4)CO)O)O)O