Double cone-like crystal form of 2-amino-6-chloropurine and prep

Details Double cone-like crystal form of 2-amino-6-chloropurine and prep Double cone-like crystal form of 2-amino-6-chloropurine and prep

1996-10-29

1998-08-04

Berch, Mark L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C07D47340

Patent

active

057895902

ABSTRACT:
The present invention is directed to a method for preparing 2-amino-6-chloropurine having a double cone-like crystal form, comprising the steps of:

REFERENCES:
patent: 2815346 (1957-12-01), Hitchings
patent: 4736029 (1988-04-01), Harnden
Abstract of DE 4231036 (A1).
Abstract of WO93/15075.
Abstract of JP-5-213952 (A2).
Abstract of DE 4142568 (A1).
Abstract of EP 543095 (A2).
Abstract of WO92/13859.
Abstract of Shengwu Huaxue Yu Shengwu Wuli Jinzhan (1987) (2)62-4.
Abstract of JP-61-227583 (A2).
Abstract of J. Heterocycl. Chem. (1974) 11(1) 77-8.
Davies, G.D. et al., J. Am. Chem. Sol., 82, 2633-2640 (May 20, 1960).
Nasutavicus, J. Het. Chem 11, 77-8(1974).

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