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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 653258Generated: October 28, 2026

p-Toluenesulfonic acid monohydrate → (3R,4S)-3-[2-(2-chloroacetamidothiazol-4-yl)-2-methoxyiminoacetamido]-4-(1-methyl-1H-tetrazol-4-yl)thio-2-oxoazetidine

https://huagongshe.com/reaction/653258

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
ReactantC8H8ClN3O4SHCID 581157—
Reactant(3R,4S)-4-(1-methyl-1H-tetrazol-4-yl)thio-3-tritylamino-2-oxoazetidineHCID 54359258—
SolventAcetoneHCID 180—
Product(3R,4S)-3-[2-(2-chloroacetamidothiazol-4-yl)-2-methoxyiminoacetamido]-4-(1-methyl-1H-tetrazol-4-yl)thio-2-oxoazetidineHCID 5700302555.9%

Reaction Steps

Following the procedure of Reference Example 66B, solution of 1.12 g of (3R,4S)-4-(1-methyl-1H-tetrazol-4-yl)thio-3-tritylamino-2-oxoazetidine in 5 ml of acetone, 0.491 g of p-toluenesulfonic acid monohydrate and 0.788 g of 2-(2-chloroacetamidothiazol-4-yl)-2-methoxyiminoacetic acid is treated to give 0.650 g of (3R,4S)-3-[2-(2-chloroacetamidothiazol-4-yl)-2-methoxyiminoacetamido]-4-(1-methyl-1H-tetrazol-4-yl)thio-2-oxoazetidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04675397
Source datasetuspto-grants-1987_06
ORD IDord-af8981b0b7af40b1b1c6ef3fbd29f4b1
Source noteuspto-grants-1987_06