Inventor

SHIROI TAKASHI

JP32 patents

⚠️ This page may combine multiple inventors who share the name “SHIROI TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHIROI TAKASHI

OTSUKA KAGAKU KK

β-lactam and cephem compounds and processes for their production

Penam derivatives

Process for preparing cephem compounds

2-substituted cephem derivatives and process for preparing the same

Method for production of β-lactam derivatives

Ozonide reducing agent

Process for preparing cephem derivatives

Process for preparing 2-exo-methylenepenam derivatives

Process for preparation of β-lactam derivative from an alkenyl substituted β-lactam derivative using a ruthenium or rhenium catalyst and a periodic acid

Process for preparation of azetidinone derivatives

Method for production of 3-exomethylenecepham derivatives

Process for preparing examethylenecephem compounds

Process for preparing 2,2-bishalomethylpenam derivatives

Thiazolinoazetidinone derivative

Process for preparing a 3-formylcephem derivative

Process for preparing cephalosporin compounds

Bicyclic azetidinone intermediates

Process for preparation on 3-substituted cephem compound

Process for preparing azetidinone derivatives

OTSUKA KAGAKU YAKUHIN

Azetidinone derivatives and process for the preparation of the same

4-thio azetidinone intermediates and process for the preparation of the same

Thiazolinoazetidinone derivatives and process for the preparation of the same

Process for preparing thiazolidine compounds

Thiazolinoazetidinone derivatives and process for the preparation of the same

Process for preparing azetidinone derivatives

Thiazolineazetidinone-type compounds

Process for preparing 3-exo-methylenecepham derivatives

Process for preparing β-lactam derivatives

Process for preparing thiazolinozetidinone derivatives

Process for preparing 2-oxycephalosporin derivatives

Process for preparing oxazolineazetidinone derivatives

OTSUKA KAGAKU KASBUSHIKI KAISH

Process for preparing thiazolino azetidinone and 2-exo-methylenepenam derivative