With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.85064-61-5,Tetrahydropyranyl-4-acetic acid,as a common compound, the synthetic route is as follows.
85064-61-5, Step 1 : Preparation of (S)-benzyl 1 -(fluoromethyl)-4- ((lR,3aS,5aR,5bR,7aR,l laS,l lbR,13aR,13bR)-5a,5b,8,8,l la-pentamethyl-l-(prop-l-en- 2-yl)-3a-(2-(tetrahydro-2H-pyran-4-yl)acetamido)- 2,3,3a,4,5,5a,5b,6,7,7a,8,l l,l la,l lb,12,13,13a,13b-octadecahydro-lH- cyclopenta[a]chrysen-9-yl)cyclohex-3-enecarboxylate To a mixture of (S)-benzyl 4-((lR,3aS,5aR,5bR,7aR,l laS,l lbR,13aR,13bR)-3a-amino- 5a,5b,8,8, 11 a-pentamethyl- 1 -(prop- 1 -en-2-yl)- 2,3,3a,4,5,5a,5b,6,7,7a,8,l l,l la,l lb,12,13,13a,13b-octadecahydro-lH- cyclopenta[a]chrysen-9-yl)-l-(fluoromethyl)cyclohex-3-enecarboxylate (50 mg, 0.076 mmol) and 2-(tetrahydro-2H-pyran-4-yl)acetic acid (13 mg, 0.091 mmol) in CH2CI2 (1 mL) was added DIPEA (0.05 ml, 0.305 mmol) followed by HATU (44 mg, 0.114 mmol). The solution was stirred at room temperature for 1 h. The reaction mixture was concentrated under reduced pressure. The crude product was purified by flash chromatography on silica gel column (20-45percent EtOAc/Hexane) using ELS detector to give the desired product as a solid (quantitative yield). LCMS m/e 782.55 (M+H)+, 4.346 minutes (Method 8). XH NMR (400MHz, CHLOROFORM-d) delta 7.39 – 7.29 (m, 5H), 5.32 (s, IH), 5.21 – 5.14 (m, 2H), 5.12 (d, J=4.5 Hz, IH), 5.10 (s, IH), 4.73 (d, J=1.3 Hz, IH), 4.63 (s, IH), 4.61- 4.56 (m, IH), 4.50 – 4.44 (m, IH), 3.96 (dd, J=11.3, 3.5 Hz, 2H), 3.47 – 3.38 (m, 2H), 2.73 – 2.65 (m, IH), 2.60 (d, J=17.3 Hz, IH), 2.51 (dd, J=12.4, 8.2 Hz, IH), 2.42 (td, J=10.5, 5.3 Hz, IH), 2.19 – 0.92 (m, 32H), 1.70 (s, 3H), 1.01 (s, 3H), 0.97 (s, 3H), 0.90 (s, 3H), 0.88 (s, 3H), 0.85 (s, 3H).
The synthetic route of 85064-61-5 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; BRISTOL-MYERS SQUIBB COMPANY; SIT, Sing-Yuen; CHEN, Yan; CHEN, Jie; SWIDORSKI, Jacob; VENABLES, Brian Lee; SIN, Ny; MEANWELL, Nicholas A.; REGUEIRO-REN, Alicia; HARTZ, Richard A.; XU, Li; LIU, Zheng; WO2015/157483; (2015); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics