1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide)

Base Information

Chemical Name:1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide)
CAS No.:721924-45-4
Molecular Formula:C₄₂H₄₀N₂O₆S
Molecular Weight:700.855
Hs Code.:

Synonyms:1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide)

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Chemical Property of 1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide)

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Technology Process of 1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide)

There total 4 articles about 1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide) 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:

Reference yield: 68.0%

: 100-39-0
benzyl bromide

: 721924-30-7
3-amino-3-C-cyano-3-deoxy-1,2-O-isopropylidene-3-N-phenylmethanesulfonyl-5-O-trityl-α-D-ribofuranose

: 721924-45-4
1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide)

Guidance literature:: With potassium carbonate; In acetone; for 48h; Heating;
DOI:10.1016/j.tet.2004.03.063

Reference yield: 48.0%

: 721924-34-1
3-amino-3-N-benzyl-3-C-cyano-3-deoxy-1,2-O-isopropylidene-3-N-phenylmethanesulfonyl-5-O-trityl-α-D-ribofuranose

: 721924-45-4
1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide)

Guidance literature:: With caesium carbonate; In acetonitrile; for 1h; Heating;
DOI:10.1016/j.tet.2004.03.063

Reference yield:

: 20590-54-9
1,2-O-isopropylidene-5-O-(triphenylmethyl)-α-D-erythro-pentofuranos-3-ulose

: 721924-45-4
1,2-O-isopropylidene-5-O-trityl-α-D-erythro-pentofuranose-3-spiro-3'-(4'-amino-2'-N-benzyl-5'-phenyl-5'H-2',3'-dihydroisothiazole-1',1'-dioxide)

Guidance literature:: Multi-step reaction with 4 steps

1.1: NH₃; Ti(OiPr)4 / methanol / 5 h / 20 °C

1.2: 96 percent / methanol / 12 h

2.1: 93 percent / DMAP; pyridine / 2 h / 20 °C

3.1: 31 percent / potassium carbonate / acetone / 4 h / Heating

4.1: 48 percent / cesium carbonate / acetonitrile / 1 h / Heating

With pyridine; titanium(IV) isopropylate; dmap; ammonia; potassium carbonate; caesium carbonate; In methanol; acetone; acetonitrile;
DOI:10.1016/j.tet.2004.03.063