As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 39093-93-1, name is Thiomorpholine 1,1-dioxide. This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. 39093-93-1
Step 1. Preparation of (S)-benzyl 4-((lR,3aS,5aR,5bR,7aR,l laS,l lbR,13aR,13bR)-3a- ((2-( 1 , 1 -dioxidothiomorpholino)-2-oxoethyl)amino)-5 a,5b,8, 8, 11 a-pentamethyl- 1 -(prop- l-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. In a 1 dram vial with PTFE lined screw cap were combined 2- (((lR,3aS,5aR,5bR,7aR,l laS,l lbR,13aR,13bR)-9-((S)-4-((benzyloxy)carbonyl)-4- (fluoromethyl)cyclohex- 1 -en- 1 -yl)-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-3a-yl)amino)acetic acid, TFA (0.025 g, 0.030 mmol) with thiomorpholine 1,1-dioxide (10.20 mg, 0.075 mmol) and HATU (0.029 g, 0.075 mmol) in THF (1 mL). To the mixture was added DIPEA (0.026 mL, 0.151 mmol), and the resulting solution was agitated overnight at rt. The crude mixture was purified by reverse phase preparative HPLC (Prep HPLC Method 16) to give the product (0.0269 g, 94percent yield) as a white powder TFA salt. LCMS: m/z 831.5 (M+H)+, 2.50 min (method 1).
While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant. 39093-93-1, we look forward to future research findings about .
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;,
Thiomorpholine – Wikipedia
Thiomorpholine | C4H9NS – PubChem