PATENT CLAIM ANALYSIS

Application Number: 15744272
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["558", "406000"]

Abstract:
The present invention provides an improved process for the preparation of 3-(4-chlorophenyl)-3-cyanopropanoic acid (compound (A)) and further its transformation to Baclofen (I). The process comprises reaction of compound (II) with Glyoxylic acid to obtain 3-(4-chlorophenyl)-3-cyanoacrylic acid (III); followed by the ‘in-situ’ reduction of (III) in the presence of a reducing agent to provide the compound (A). Alternatively, the compound (A) is obtained by the process comprising reacting 2-(4-chlorophenyl)acetonitrile (II) with haloacetic acid (IV) in the presence of a base. The compound 3-(4-chlorophenyl)-3-cyanopropanoic acid (A) undergoes hydrogenation in the presence of a metal catalyst and ammonia solution to provide Baclofen (I).

Claim (Index 15):
The process according to  claim 13 , wherein the metal catalyst is selected from the group consisting of Nickel, Raney Nickel, palladium, platinum, zinc, iron (Fe) or Sn.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 86.0
- Lexical Diversity: 2.27692
- Patent Class: 558.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12995016', '14419980', '15559987', '15542093', '14075053']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7002140135847411
- 35 USC 102 Novelty (BERT): 0.5228741407145495
- Combined Prediction Score: 0.682480026297722
- Mean Citation Score: 218.768978
- Max Citation Score: 227.33948
- Similarity Product: 160.6325096802473

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