PATENT CLAIM ANALYSIS

Application Number: 16327972
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["552", "508000"]

Abstract:
The present invention discloses a process for the preparation of pregnadiene derivatives having formula I, their stereoisomer and intermediate thereof. Formula I wherein each substituent is independently, R 1  and R 2  is hydrogen or C 1 -C 8  straight, branched alkyl chain, saturated or unsaturated cycloalkyl; R 3  is hydrogen or wherein R 5  represents C 1 -C 8  straight, branched alkyl chain or cycloalkyl; R 4  is hydrogen or halogen; R 6  is hydrogen or halogen;

Claim (Index 7):
The process as claimed in  claim 1 , wherein the epoxide ring opening is carried out in the presence of a hydrohalic acid selected from the group comprising HF, HCl, HBr etc, preferably HF and acetalisation is carried out with aldehyde or ketone selected from the group comprising formaldehyde, paraldehyde, acetone, benzaldehyde, acetophenone, diethylketone, cyclohexane corboxaldehyde sodium metabisulphite complex, cyclopentanone preferably acetone.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 99.0
- Lexical Diversity: 1.76
- Patent Class: 552.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15543862', '12061499', '14354478', '12666423', '15548713']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6367356907938112
- 35 USC 102 Novelty (BERT): 0.5776973171515105
- Combined Prediction Score: 0.6308318534295811
- Mean Citation Score: 223.41237400000003
- Max Citation Score: 277.79678
- Similarity Product: 221.8530338432336

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test