PATENT CLAIM ANALYSIS

Application Number: 15771449
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["548", "232000"]

Abstract:
The invention relates to a method for preparing an oxazolidinone intermediate. Specifically, a synthesis procedure for the intermediate comprises: directly performing a “one-pot” reaction on a compound I, compound J or compound L without performing isolation, wherein a salt of a compound K is selected from a hydrochloride, sulfate, malate, tartrate, p-toluenesulfonate, or lactate, and wherein the symbol * in a compound indicates an atom of an R-type chirality or an S-type chirality or a racemate thereof.

Claim (Index 9):
The method according to  claim 8 , wherein the phase transfer catalyst in step 1 is selected from the group consisting of tetrabutylammonium bromide, tetrabutylammonium fluoride or tetrabutylammonium hydroxide; and the reaction of step 1 is performed without a solvent or in an organic solvent.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 91.0
- Lexical Diversity: 1.59649
- Patent Class: 548.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13806378', '15772521', '14436566', '16087308', '14683726']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7545480430110639
- 35 USC 102 Novelty (BERT): 0.5126344772200702
- Combined Prediction Score: 0.7303566864319645
- Mean Citation Score: 270.03664
- Max Citation Score: 286.33313
- Similarity Product: 213.5684846768355

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test