Technology Process of Benzoic acid (1R,3R,5S,6S,7R,8R,15S,16R,17R,19R)-7-benzyloxy-17-(5-benzyloxycarbonylamino-pentyloxy)-19-benzyloxymethyl-6-(4-methoxy-benzyloxy)-5-methyl-10,13-dioxo-2,4,9,14,18-pentaoxa-tricyclo[13.4.0.03,8]nonadec-16-yl ester
There total 11 articles about Benzoic acid (1R,3R,5S,6S,7R,8R,15S,16R,17R,19R)-7-benzyloxy-17-(5-benzyloxycarbonylamino-pentyloxy)-19-benzyloxymethyl-6-(4-methoxy-benzyloxy)-5-methyl-10,13-dioxo-2,4,9,14,18-pentaoxa-tricyclo[13.4.0.03,8]nonadec-16-yl ester which
guide to synthetic route it.
The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:
synthetic route:
-
-
183240-05-3
Benzoic acid (1R,3R,5S,6S,7R,8R,15S,16R,17R,19R)-7-benzyloxy-17-(5-benzyloxycarbonylamino-pentyloxy)-19-benzyloxymethyl-6-(4-methoxy-benzyloxy)-5-methyl-10,13-dioxo-2,4,9,14,18-pentaoxa-tricyclo[13.4.0.03,8]nonadec-16-yl ester
- Guidance literature:
-
Multi-step reaction with 5 steps
1: 1.) Bu2SnO, molecular sieves 4 Angstroem, 2.) CsF / 1.) C6H6, reflux, 5 h, 2.) DMF, r.t., 5 h
2: 94 percent / DMAP, pyridine / 60 h / Ambient temperature
3: 88 percent / DCC, DMAP / CH2Cl2 / 26 h / Ambient temperature
4: 35 percent / HCl, NaCNBH3, molecular sieves 3 Angstroem / diethyl ether; tetrahydrofuran / 0.08 h / Ambient temperature
5: 32 percent / N-iodosuccinimide, molecular sieves 3 Angstroem / acetonitrile / 21 h / 0 °C
With
pyridine; hydrogenchloride; dmap; N-iodo-succinimide; 3 A molecular sieve; 4 A molecular sieve; di(n-butyl)tin oxide; sodium cyanoborohydride; dicyclohexyl-carbodiimide; cesium fluoride;
In
tetrahydrofuran; diethyl ether; dichloromethane; acetonitrile;
DOI:10.1002/jlac.199619961016
-
-
183240-05-3
Benzoic acid (1R,3R,5S,6S,7R,8R,15S,16R,17R,19R)-7-benzyloxy-17-(5-benzyloxycarbonylamino-pentyloxy)-19-benzyloxymethyl-6-(4-methoxy-benzyloxy)-5-methyl-10,13-dioxo-2,4,9,14,18-pentaoxa-tricyclo[13.4.0.03,8]nonadec-16-yl ester
- Guidance literature:
-
Multi-step reaction with 7 steps
1: NaH, Bu4NBr / dimethylformamide / 1.) r.t., 45 min, 2.) r.t., 2.5 h
2: 70percent aq. AcOH / 2 h / 60 °C
3: 1.) Bu2SnO, molecular sieves 4 Angstroem, 2.) CsF / 1.) C6H6, reflux, 5 h, 2.) DMF, r.t., 5 h
4: 94 percent / DMAP, pyridine / 60 h / Ambient temperature
5: 88 percent / DCC, DMAP / CH2Cl2 / 26 h / Ambient temperature
6: 35 percent / HCl, NaCNBH3, molecular sieves 3 Angstroem / diethyl ether; tetrahydrofuran / 0.08 h / Ambient temperature
7: 32 percent / N-iodosuccinimide, molecular sieves 3 Angstroem / acetonitrile / 21 h / 0 °C
With
pyridine; hydrogenchloride; dmap; N-iodo-succinimide; 3 A molecular sieve; 4 A molecular sieve; tetrabutylammomium bromide; sodium hydride; di(n-butyl)tin oxide; sodium cyanoborohydride; acetic acid; dicyclohexyl-carbodiimide; cesium fluoride;
In
tetrahydrofuran; diethyl ether; dichloromethane; N,N-dimethyl-formamide; acetonitrile;
DOI:10.1002/jlac.199619961016
-
-
183240-05-3
Benzoic acid (1R,3R,5S,6S,7R,8R,15S,16R,17R,19R)-7-benzyloxy-17-(5-benzyloxycarbonylamino-pentyloxy)-19-benzyloxymethyl-6-(4-methoxy-benzyloxy)-5-methyl-10,13-dioxo-2,4,9,14,18-pentaoxa-tricyclo[13.4.0.03,8]nonadec-16-yl ester
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 53 percent / Bu4NHSO4, 5percent aq. NaOH / CH2Cl2 / 0.33 h / -4 °C
2: 88 percent / DCC, DMAP / CH2Cl2 / 26 h / Ambient temperature
3: 35 percent / HCl, NaCNBH3, molecular sieves 3 Angstroem / diethyl ether; tetrahydrofuran / 0.08 h / Ambient temperature
4: 32 percent / N-iodosuccinimide, molecular sieves 3 Angstroem / acetonitrile / 21 h / 0 °C
With
hydrogenchloride; dmap; sodium hydroxide; N-iodo-succinimide; 3 A molecular sieve; tetra(n-butyl)ammonium hydrogensulfate; sodium cyanoborohydride; dicyclohexyl-carbodiimide;
In
tetrahydrofuran; diethyl ether; dichloromethane; acetonitrile;
DOI:10.1002/jlac.199619961016